DAYS 1-5 (JANUARY 29 – FEBRUARY 2)

The “lazy” storm winds down today. This system was an under-performing event that had its potential thwarted by lack of cold air and lack of organization. Today, there will be some lingering aspects, such as ocean-effect snow showers from the MA South Shore to Cape Cod with minor snow accumulation, a gusty breeze across the region, and falling temperatures, so it actually feels like the middle portion of winter. Cold air becomes established and hangs around for the final 2 days of January as well on Tuesday and Wednesday, with fair weather, but some clouds at times, as weak high pressure takes control of the weather. This high drifts to the east and south by Thursday with a slight temperature moderation. Upper level low pressure drops southeastward from Canada into the US Northeast late Thursday and Friday with some unsettled weather and a trend back to colder air by the very end of the week.

TODAY: Mostly cloudy to partly sunny. Snow showers southeastern MA likely through midday with accumulations of up to 1 inch. Chance of flurries elsewhere. Highs 32-39 early, then falling gradually into the 20s from north to south. Wind NE to N 10-15 MPH, gusts 20-25 MPH.

TONIGHT: Partial clearing. Lows 15-22. Wind NW 5-15 MPH.

TUESDAY: Partly sunny. Highs 27-34. Wind NW 5-15 MPH.

TUESDAY NIGHT: Partly cloudy. Lows 12-19. Wind W up to 10 MPH.

WEDNESDAY: Partly sunny. Highs 31-38. Wind W up to 10 MPH.

WEDNESDAY NIGHT: Partly cloudy. Lows 15-22. Wind W up to 10 MPH.

THURSDAY: Sun gives way to clouds. Highs 36-43. Wind W 5-15 MPH.

THURSDAY NIGHT: Mostly cloudy. A snow shower possible. Lows 25-32. Wind SW 5-15 MPH.

FRIDAY: Mostly cloudy. Possible mix/snow showers. Highs 35-42. Wind SW to variable 5-15 MPH.

DAYS 6-10 (FEBRUARY 3-7)

Fair, seasonably cold for the February 3-4 weekend as well as February 5. Looking at potential snow or snow showers in the February 6-7 time frame as a low pressure trough moves through the region.

DAYS 11-15 (FEBRUARY 8-12)

Next window of opportunity for winter precipitation comes mid to late period. Temperatures near to slightly below normal.

DAYS 1-5 (JANUARY 28 – FEBRUARY 1)

A storm will impact our region today into Monday with a variety of precipitation, the type dependent on the precise temperature profile of the atmosphere at any given location. The basic idea remains the same as discussed yesterday. A shield of precipitation overspreading the region from south to north is ongoing and will be completed by midday. Higher elevation areas further west and north see snow longer than anybody else from the initial batch, and where it starts as a mix or rain it can flip to snow when it comes down heavier, due to the dynamic cooling process. Accumulations can be variable, not so regionally uniform, during the initial phase of this event. Low pressure does track in a place that typically would bring fairly widespread snowfall regionwide, but as mentioned yesterday, the lack of cold in place ahead of the system makes that more difficult, and not only does the storm manufacture cold during its occurrence for snow to occur, but it’s during the final hours of the storm, after a mid-storm lull due to mid level drying, that cold air moves in from the north and northwest, flipping the precipitation to snow for everyone from northwest to southeast. For areas that saw mix/rain for many hours during the passage of the system, this would be when most of the snow accumulation occurs. The storm breakdown that I posted yesterday, with a couple tweaks, is repeated next…

Precipitation arrival time / type: Ongoing as rain (some mix) South Coast, spreading north and northeast through all of the region by midday as rain with pockets of mix/snow, except mostly snow in areas north of Route 2 and west of I-95, with bursts of snow further east and south with any moderate (heavy enough) precipitation. This phase of the storm’s precipitation continues through dusk. Mid level dry air will work northward during Sunday evening, creating a taper off for a few hours in the precipitation, especially south of I-90. Area that were raining continue to see lighter rain/drizzle, and some areas that were seeing mix/snow probably go over to a period of lighter rain for a while. The higher terrain of interior southern NH and MA from the I-495 belt westward stay cold enough for snow, and also are less affected by the dry slot, if at all. Beyond this, the overnight hours to early or mid morning Monday will be when the greatest amount of cold air is pulled into the system from the north, along with additional dynamic cooling from above. This is when snow will overtake the entire region from northwest to southeast in mix/rain areas, including but lastly Cape Cod, and there will be a temporarily increase in the intensity of precipitation in response to intensifying surface low pressure. This is when most of the snow accumulation will take place east of I-95 and south of I-90. Snow ends by late morning or midday Monday from northwest to southeast as low pressure begins to pull away.

Total snowfall: Keep in mind that this is for the entire event, and depending on precipitation type, the total snowfall will not be the amount of snow on the ground at any given location. Even in areas that stay all snow to the northwest have a wet snow for a good part of the storm, and compacting will occur there before it flips to a lower water content snowfall later in the storm. Looking for up to 1 inch Outer Cape Cod / Islands and immediate South Coast of MA/RI and eastern CT, 1-3 inches remainder of Cape Cod and MA South Shore to Boston / Providence through interior southeastern CT, 3-6 inches in the majority of the I-95 corridor and northern RI to northeastern CT and lower elevations of south central MA as well as the NH Seacoast, and 6-10 inches interior southern NH and the western Merrimack Valley west and southwest through central MA. Highest snowfall occurs in higher elevations.

Flooding: No major issues, both rivers and coastal areas.

Wind: Top gusts may reach 50 MPH across Cape Cod early hours of Monday from the northeast. No major wind issues for the remainder of the region.

Power outages: Moderate risk of power outages in areas where heaviest snowfall occurs due to the higher water content nature of the snowfall for much of the storm. Lower risk of wind-related power outages Cape Cod.

Post-storm, clearing arrives Monday night and high pressure moves in with fair and chilly weather through the middle of the coming week. A trough dropping out of Canada through the Great Lakes into the Northeast may bring snow showers to the region by later Thursday.

TODAY: Overcast. Rain/mix/snow develops southwest to northeast by midday and continues afternoon with greatest chance of snow interior higher elevations, but also periods of alternating precipitation type closer to the I-95 belt while mostly rain falls in the coastal areas especially south. Highs 35-42 by midday, then slowly but unevenly falling temperatures. Wind NE 5-15 MPH, higher gusts especially coastal areas by late-day.

TONIGHT: Overcast. Precipitation of varying intensity may stop at times especially south of I-90 where more rain than snow is likely, and will be steadiest I-90 north where more snow is likely, with more of transition to snow working southeastward overnight when precipitation is steadier. Temperatures slowly falling to 28-35 by dawn coldest northwest, mildest coastal plain. Wind NE 10-20 MPH except 20-30 MPH Cape Cod where gusts 40-50 MPH are possible.

MONDAY: Overcast with snow likely in the morning. Snow ending with breaking clouds afternoon. Temperatures falling to 25-32. Wind NE-N 10-20 MPH, higher gusts especially coastal areas through midday.

MONDAY NIGHT: Clearing. Lows 13-20. Wind NW 5-15 MPH.

TUESDAY: Mostly sunny. Highs 27-34. Wind NW 5-15 MPH.

TUESDAY NIGHT: Mostly clear. Lows 12-19. Wind W up to 10 MPH.

WEDNESDAY: Mostly sunny. Highs 30-37. Wind W up to 10 MPH.

WEDNESDAY NIGHT: Mostly clear. Lows 13-19. Wind variable up to 10 MPH.

THURSDAY: Partly sunny. Chance of late day snow showers. Highs 31-38. Wind W 5-15 MPH.

DAYS 6-10 (FEBRUARY 2-6)

Additional snow showers possible with a passing trough on February 2. Generally fair weather expected during the February 3-5 time frame. Another storm threatens the region by the end of the period. Temperatures variable, averaging close to normal overall.

DAYS 11-15 (FEBRUARY 7-11)

Storm potentials somewhere early period and again at the end of the period. Temperatures near to slightly below normal.

DAYS 1-5 (JANUARY 27-31)

Down the home stretch of the first month of 2024 we go, and the pattern remains active in this El Nino winter. So far, the great majority of the winter has seen the polar jet stream well to the north of our region. It’s dipped southward plenty in other parts of the hemisphere, but hasn’t seemed to want to visit the northeastern US. There are changes ahead in that, but not enough to help put too much cold in place for our next upcoming storm. Before we get there, we have a break today between yesterday’s morning event and the Sunday-Monday event. But lots of low level moisture is hanging out with us and keeping it overcast and still on the damp side. But a weak frontal boundary coming down from the north will introduce drier air as we go through the day, and while clouds may break, I’m not looking for complete clearing. Any partial clearing we do get would be erased tonight as clouds from the next low pressure system move into the region. And then comes the next storm. Low pressure will pass south of New England between late Sunday and early to midday Monday, its track is what would be a typically good spot for a solid snowstorm through the region in late January. However, the aforementioned missing cold air mass makes that more difficult. Cold air will become involved though, both advecting in from the north and also from above through the “dynamic cooling” process. It’s the timing of these that will determine rain to snow changeover, how much sleet may accompany the transition, and in the end, what the final snowfall totals are across the region. My thought process on that hasn’t changed that much from yesterday. Snow accumulation ranges will be broad enough to account for the uncertainty, but tight enough so that you should at least have a good idea of what ballpark you’ll be in for snowfall. The following is a general breakdown of the storm…

Precipitation arrival time / type: Shield of precipitation enters via the CT/RI coast pre-dawn Sunday as rain, then overspreads the region southwest to northeast during the morning so that by noon the leading edge is arriving around the NH Seacoast. Anywhere away from the South Coast, but most especially in higher elevations, precipitation can start as mixed rain/snow or even just wet snow as temperatures will straddle the rain/snow production borderline. If dew points are low enough, a brief early-on period of dynamic can take place for earlier snowfall, at least temporarily. During Sunday afternoon and early evening the warm advection portion of the precipitation will take place, a moderate burst, which will fall as mainly rain for the South Coast, and Cape Cod to the MA South Shore, but mixed rain/snow to all snow at times in the I-95 corridor, and mix to mostly snow across interior southern NH through the Merrimack Valley and central MA. Mid level dry air will work northward later Sunday evening, creating a taper off for a few hours in the precipitation, especially south of I-90. Area that were raining continue to see lighter rain/drizzle, and some areas that were seeing mix/snow probably go over to a period of lighter rain for a while. The higher terrain of interior southern NH and MA from the I-495 belt westward stay cold enough for snow, and also are less affected by the dry slot, if at all. Beyond this, the overnight hours to early or mid morning Monday will be when the greatest amount of cold air is pulled into the system from the north, along with additional dynamic cooling from above. This is when snow will overtake the entire region from northwest to southeast in mix/rain areas, including but lastly Cape Cod, and there will be a temporarily increase in the intensity of precipitation in response to intensifying surface low pressure. This is when most of the snow accumulation will take place east of I-95 and south of I-90. Snow ends by late morning or midday Monday from northwest to southeast as low pressure begins to pull away.

Total snowfall: Keep in mind that this is for the entire event, and depending on precipitation type, the total snowfall will not be the amount of snow on the ground at any given location. Even in areas that stay all snow to the northwest have a wet snow for a good part of the storm, and compacting will occur there before it flips to a lower water content snowfall later in the storm. Looking for up to 1 inch Outer Cape Cod / Islands and immediate South Coast of MA/RI and eastern CT, 1-3 inches remainder of Cape Cod and Plymouth MA area to Providence RI area through interior southeastern CT, 3-6 inches in the majority of the I-95 corridor including Boston and northern RI to northeastern CT and lower elevations of south central MA as well as the NH Seacoast, and 6-10 inches interior southern NH and the western Merrimack Valley west and southwest through central MA. Highest snowfall occurs in higher elevations.

Flooding: No major issues, both rivers and coastal areas.

Wind: Top gusts may reach 50 MPH across Cape Cod early hours of Monday from the northeast. No major wind issues for the remainder of the region.

Power outages: Moderate risk of power outages in areas where heaviest snowfall occurs due to the higher water content nature of the snowfall for much of the storm. Lower risk of wind-related power outages Cape Cod.

Post-storm, we start to see clearing later Monday and then dry and seasonably cold weather is ours to finish off the month as high pressure moves in Tuesday and Wednesday.

TODAY: Cloudy morning with patchy drizzle and areas of fog. Mostly cloudy but breaks of sun possible afternoon. Highs 40-47. Wind NW up to 10 MPH.

TONIGHT: Mostly cloudy. Lows 30-37. Wind N under 10 MPH.

SUNDAY: Overcast. Rain/mix/snow develops southwest to northeast by midday and continues afternoon with greatest chance of snow interior higher elevations, but also periods of alternating precipitation type closer to the I-95 belt while mostly rain falls in the coastal areas especially south. Highs 37-44 by midday, then slowly but unevenly falling temperatures. Wind NE 5-15 MPH, higher gusts especially coastal areas by late-day.

SUNDAY NIGHT: Overcast. Precipitation of varying intensity may stop at times especially south of I-90 where more rain than snow is likely, and will be steadiest I-90 north where more snow is likely, with more of transition to snow working southeastward overnight when precipitation is steadier. Lows 25-32 by dawn. Wind NE 10-20 MPH except 20-30 MPH Cape Cod where gusts 40-50 MPH are possible.

MONDAY: Overcast with snow likely in the morning. Snow ending with breaking clouds afternoon. Temperatures steady 25-32. Wind NE-N 10-20 MPH, higher gusts especially coastal areas through midday.

MONDAY NIGHT: Clearing. Lows 13-20. Wind NW 5-15 MPH.

TUESDAY: Mostly sunny. Highs 27-34. Wind NW 5-15 MPH.

TUESDAY NIGHT: Mostly clear. Lows 12-19. Wind W up to 10 MPH.

WEDNESDAY: Mostly sunny. Highs 30-37. Wind W up to 10 MPH.

DAYS 6-10 (FEBRUARY 1-5)

Trough drops down from Canada with snow shower chances February 1-2. Dry weather follows. Temperatures variable but averaging near to slightly below normal.

DAYS 11-15 (FEBRUARY 6-10)

Storm potential somewhere in the early to middle portion of this period. Fair weather follows. Temperatures near normal for the period though somewhat variable.

DAYS 1-5 (JANUARY 26-30)

As low pressure approaches and passes through the region it will do a gelatin-wobble along a boundary near the South Coast, keeping us cool and damp. The steadiest rain falls this morning then tapers to patchy drizzle from midday on. We dry out somewhat tonight and for a good part of Saturday, but a little trough dropping into the region on Saturday can still trigger a few showers of rain, with some mix/snow showers north of Route 2 where temperatures will be marginal to support some frozen precipitation. That colder air will drain slowly southward through Sunday as the next low pressure area approaches. There’s a little uncertainty as to when its precipitation shield overspreads the region. The earlier Sunday this occurs, the more likely it starts as rain, and the later it occurs, the more likely it starts as rain to the south but a mix of rain and snow to the north. Regardless, as this final low in the series travels to our south, it’ll pull in additional cold and evolve into a snow event Sunday night into Monday, before it moves away. A general light to moderate snowfall is expected, with exact amounts depending on some details yet to be worked out, forecast-wise. But that process will be ongoing, which I can share in comments and update in more detail on tomorrow’s blog post. But for now, an early call is that 3 or more inches of snowfall can be expected across much of the WHW forecast area from that system. Later Monday and Tuesday will feature drier, cold weather.

TODAY: Cloudy. Rain morning, patchy drizzle afternoon. Areas of fog. Highs 37-44. Wind NE-E under 10 MPH.

TONIGHT: Mostly cloudy. Areas of fog. Lows 30-37. Watch for patches of black ice where temperatures fall to freezing or below. Wind NE-N under 10 MPH.

SATURDAY: Mostly cloudy. A shower of rain except rain or snow north of Route 2. Highs 40-47. Wind NW up to 10 MPH.

SATURDAY NIGHT: Mostly cloudy. Lows 27-34. Wind N up to 10 MPH.

SUNDAY: Overcast. Rain/mix arrives in the afternoon. Highs 35-42. Wind N-NE 5-15 MPH.

SUNDAY NIGHT: Overcast. Snow to the north, rain changing to snow to the south. Temperatures fall to 20s. Wind NE-N 10-20 MPH, higher gusts.

MONDAY: Overcast with snow likely in the morning. Snow ending with breaking clouds afternoon. Temperatures remain in 20s. Wind NE-N 10-20 MPH, higher gusts possible.

MONDAY NIGHT: Clearing. Lows 13-20. Wind NW 5-15 MPH.

TUESDAY: Mostly sunny. Highs 30-37. Wind W 5-15 MPH.

DAYS 6-10 (JANUARY 31 – FEBRUARY 4)

Below normal temperatures for a good portion of this period, moderating toward the end of next week. Dry to start. Watch January 31 through February 2 for possible snow or snow showers, then a return to fair weather thereafter.

DAYS 11-15 (FEBRUARY 5-9)

Fair start and finish, winter storm potential mid period. Temperatures near to below normal.

DAYS 1-5 (JANUARY 25-29)

We’re in the midst of a parade of low pressure areas moving along the boundary between mild air to the south and Canadian cold to the north. It’s warm enough that the event just ending and the next one coming late tonight into Friday will fall as rain in the area. The advertised break still comes on Saturday, but may do so with little or no sun while clouds hang tough. The next storm approaches during Sunday and the time frame for this one is Sunday afternoon / evening into Monday. This one will also arrive as colder air arrives from Canada, so it looks like a rain/mix to snow set up, and the exact details of timing of cold air’s arrival and how much precipitation is still to occur will determine the eventual snow amounts. For now, an early call is that a substantial snowfall is possible for parts of the region during that time period.

TODAY: Cloudy. Patchy fog this morning. Areas of rain early morning. Highs 38-45 north, 45-52 south. Wind variable under 10 MPH.

TONIGHT: Cloudy. Rain returns overnight. Patchy fog. Lows 36-43 north, 43-50 south. Wind variable under 10 mph.

FRIDAY: Cloudy. Rain ends in the morning. Patchy fog. Temperatures steady 36-43 north, 43-50 south. Wind variable up to 10 MPH.

FRIDAY NIGHT: Breaking clouds. Areas of fog. Lows 30-37. Watch for patches of black ice where temperatures fall to freezing or below. Wind variable under 10 MPH.

SATURDAY: Mostly cloudy – breaks of sun possible. Highs 40-47. Wind W up to 10 MPH.

SATURDAY NIGHT: Partly cloudy evening. Cloudy overnight. Lows 25-32. Wind N up to 10 MPH.

SUNDAY: Overcast. Rain/mix arrives in the afternoon. Highs 35-42. Wind N 5-15 MPH.

SUNDAY NIGHT / MONDAY: Overcast. Rain/mix changing to snow. Temperatures fall to 20s. Wind NE-N 10-20 MPH, higher gusts.

DAYS 6-10 (JANUARY 30 – FEBRUARY 3)

Below normal temperatures for a good portion of this period, moderating toward the end of next week. Dry to start. Watch January 31 / February 1 for possible snow or snow showers, then a return to fair weather thereafter.

DAYS 11-15 (FEBRUARY 4-8)

Fair early period, another storm potential mid to late period. Temperatures trend colder.

DAYS 1-5 (JANUARY 24-28)

Not much change from yesterday’s write-up. This morning, most areas are coated in a fresh snowfall that ranges from a thick coating to a couple inches. During the day today, a frontal boundary struggles to get into the region, staying to the south enough that the cold air holds on for most of the day. Because spotty precipitation still has to move through the region, and it’s warming aloft, we have to watch for pockets of freezing rain showers mainly north of I-90 and especially the Route 2 Corridor northward. Some areas will also be cold enough for additional snow showers to occur, but I’m not expecting any additional accumulation. The frontal boundary does edge its way northward and ripple around the area for the upcoming two days through Friday while 2 more areas of low pressure move through the region. These will be mainly rain producers, focused on tonight and Thursday morning, and Thursday evening to Friday morning for steadiest rainfall. Neither of these will be prolific rain producers, so renewed flooding on rivers is not expected. Our active pattern continues beyond that, and after a break in the action Saturday, we get another storm system moving into and through the region Sunday and Sunday night, with a mix of precipitation trending to snowfall as colder air takes over from the north. Too soon to pinpoint snowfall potential by numbers, but many areas have a decent shot of picking up a bigger snowfall than the one we just had…

TODAY: Cloudy. Spotty snow/ice north, rain/drizzle south, tapering off later. Highs 32-39 southern NH / northern MA, 40-47 southern MA / RI / eastern CT. Wind NE-E to variable under 10 MPH.

TONIGHT: Overcast. Rain likely except some freezing rain in pockets Merrimack Valley north and west evening. Temperatures generally steady 31-38 Merrimack Valley north and west, 38-45 elsewhere, but should rise slightly overnight. Wind NE under 10 MPH becoming variable.

THURSDAY: Cloudy. Rain early in the day. Highs 35-42 valley areas Route 2 northward, 42-49 elsewhere, warmest South Coast. Wind variable under 10 MPH.

THURSDAY NIGHT: Cloudy. Rain likely. Temperatures steady 35-42 valley areas Route 2 northward, 42-49 elsewhere, warmest South Coast. Wind variable under 10 MPH.

FRIDAY: Cloudy. Rain ends in the morning. Temperatures remain steady 35-42 valley areas Route 2 northward, 42-49 elsewhere, warmest South Coast. Wind variable up to 10 MPH.

FRIDAY NIGHT: Breaking clouds. Areas of fog. Lows 30-37. Watch for patches of black ice where temperatures fall to 30-32. Wind variable under 10 MPH.

SATURDAY: Partly sunny. Highs 40-47. Wind W up to 10 MPH.

SATURDAY NIGHT: Partly cloudy evening. Cloudy overnight. Lows 25-32. Wind N up to 10 MPH.

SUNDAY: Overcast. Rain/mix/snow trending to mostly snow. Highs 32-39. Highs NE 10-20 MPH.

DAYS 6-10 (JANUARY 29 – FEBRUARY 2)

Dry, seasonably colder January 29-31. Storm potential to start February.

DAYS 11-15 (FEBRUARY 3-7)

Fair early period, another storm potential mid to late period. Temperatures trend colder.

DAYS 1-5 (JANUARY 23-27)

We continue to be in an active weather pattern with the storm train getting ready to roll once again. While none of the upcoming few events are powerful, they all produce precipitation for our region. Thankfully, the total precipitation in this 5-day period will be modest, as we’re certainly not in need of it due to recent bigger events and rivers just recovering from flooding. We expect train car #1 to come by this evening in the form of mostly snow, a light event, as a warm front approaches the region, propelled weakly by an area of low pressure passing to our south. This will taper off as a light mix early Wednesday. The next 2 cars of the train (aka low pressure areas) come along Wednesday night into Thursday and Thursday night into Friday. Both of these will produce rain for the region, but some of that rain may be freezing rain over interior locations from the Merrimack Valley to southern NH Wednesday night – something to watch closely. We dry out later Friday, and catch a break Saturday which will be fair and relatively mild with a weak area of high pressure moving in to start the weekend.

TODAY: Partial sunshine this morning for some locations, otherwise cloudy. Highs 35-42. Wind NW-N up to 10 MPH.

TONIGHT: Cloudy. Snow arrives evening, continues overnight before tapering off to a light mix of snow/ice/rain. Snow accumulation a coating to 2 inches, least near the coast, most north and west of Boston. Lows 25-32. Wind NE under 10 MPH.

WEDNESDAY: Cloudy. Early light snow/mix/rain possible. Late-day rain likely but may fall as freezing rain in pockets from the Merrimack Valley north and west. Highs 32-39 southern NH / northern MA, 40-47 southern MA / RI / eastern CT. Wind NE-E to variable under 10 MPH.

WEDNESDAY NIGHT: Overcast. Rain likely except some freezing rain in pockets Merrimack Valley north and west. Temperatures generally steady 31-38 Merrimack Valley north and west, 38-45 elsewhere. Wind NE under 10 MPH.

THURSDAY: Cloudy. Rain early in the day. Highs 35-42 valley areas Route 2 northward, 42-49 elsewhere. Wind variable under 10 MPH.

THURSDAY NIGHT: Cloudy. Rain likely. Temperatures steady 35-42 valley areas Route 2 northward, 42-49 elsewhere. Wind variable under 10 MPH.

FRIDAY: Cloudy. Rain ends in the morning. Temperatures remain steady 35-42 valley areas Route 2 northward, 42-49 elsewhere. Wind variable up to 10 MPH.

FRIDAY NIGHT: Breaking clouds. Areas of fog. Lows 30-37. Watch for patches of black ice where temperatures fall to 30-32. Wind variable under 10 MPH.

SATURDAY: Partly sunny. Highs 40-47. Wind W up to 10 MPH.

DAYS 6-10 (JANUARY 28 – FEBRUARY 1)

Storm potential January 28-29 may start as rain/mix then change to mix/snow. Mostly dry weather follows January 30-31. Another snow chance may appear for February 1. Temperatures variable, near to above normal for the period.

DAYS 11-15 (FEBRUARY 2-6)

Fair weather early in the period, another winter storm threat mid or late period. Temperatures variable but trend colder.

DAYS 1-5 (JANUARY 22-26)

High pressure drifts to our south today, with fair weather and a temperature moderation putting many areas above freezing for highs. A cold front will drop down from the north Tuesday, but this front doesn’t deliver air as cold as the last bout we went through. It does help set up a period of snow for much of the region Tuesday night as a disturbance ripples along the frontal boundary from west to east. This frontal boundary will be hanging around our region then from mid to late week with more unsettled weather. Additional areas of low pressure bring rain chances later Wednesday into Thursday, and again later Thursday into Friday, based on current timing. There’s still some question as to how much warming will take place at the surface, especially north of the I-90 belt as it is often hard to dislodge chilly air, especially when there is still snow on the ground. Keeping this in mind, as these rain systems come through, we need to keep a close eye on surface temperatures for any icing issues. Right now, I don’t think it will become a significant or widespread problem, but we will see for certain as we go through the week, so be sure to check updates…

TODAY: Mostly sunny. Highs 32-39. Wind SW 5-15 MPH.

TONIGHT: Mostly cloudy. Lows 25-32. Wind SW 5-15 MPH.

TUESDAY: Partly sunny morning. Mostly cloudy afternoon. Highs 33-40 by midday, then turning colder. Wind shifting to N 5-15 MPH, then diminishing.

TUESDAY NIGHT: Cloudy. Snow, except some mix South Coast. Snow accumulation a coating to 2 inches, least near the South Coast, most north of I-90. Lows 25-32. Wind N under 10 MPH.

WEDNESDAY: Cloudy. Early light snow/mix/rain possible. Late-day rain likely. Highs 33-40 southern NH / northern MA, 40-47 southern MA / RI / eastern CT. Wind variable up to 10 MPH.

WEDNESDAY NIGHT THROUGH FRIDAY: Cloudy with periods of rain. Pockets of freezing rain may occur mainly interior areas well northwest of Boston. Temperatures nearly steady 32-39 northern valley areas, 40-47 many areas, but rising to 47-54 coastal plain on Friday. Wind variable 5-15 MPH.

DAYS 6-10 (JANUARY 27-31)

Fair, mild January 27. Watch for a possible storm of rain/mix/snow January 28, but may pass to south. Watch for a disturbance to bring snow or snow showers January 30 or 31 as we trend colder to end the month.

DAYS 11-15 (FEBRUARY 1-5)

One or two winter precipitation threats in the first several days of February. Temperatures variable but trend colder.

DAYS 1-5 (JANUARY 21-25)

A little bonus snowfall for some areas is now history as a trough moving through the region over-produced, with expected flurries / snow showers becoming a general snowfall for a few hours, with minor accumulations. Now we have a bright, breezy, and cold Sunday with high pressure in control. This high will shift to the south Monday with a temperature moderation and continued fair weather. A stronger high pressure area settling across eastern Canada on Tuesday will send a frontal boundary southward through our region, returning chilly air to the region by late in the day. At the same time, an area of moisture will approach from the west, and as the frontal boundary hangs around just to the south and attempts to push back to the north, we can expect a period of snow and possible ice Tuesday night. This should taper off with just some lingering liquid precipitation of the light variety on Wednesday. There may be a significant temperature contrast across the region Wednesday depending on the position of the frontal boundary that came through the day before, as it makes an attempt to drift back north as a warm front, but is met with resistance from cold air to the north.

TODAY: Mostly sunny. Highs 24-31. Wind NW 5-15 MPH. Wind chill near to below 20.

TONIGHT: Mostly clear. Lows 12-19. Wind W 5-15 MPH.

MONDAY: Mostly sunny. Highs 32-39. Wind SW 5-15 MPH.

MONDAY NIGHT: Mostly clear. Lows 22-29. Wind W 5-15 MPH.

TUESDAY: Increasing clouds. Highs 33-40 by midday, then turning colder. Wind shifting to NE 5-15 MPH, then diminishing.

TUESDAY NIGHT: Cloudy. Snow likely, some accumulation, except mix/ice/rain potential I-90 south. Lows 23-30. Wind NE under 10 MPH.

WEDNESDAY: Cloudy. Spotty rain/ice possible. Highs 32-39 north, 40-47 south. Wind variable up to 10 MPH.

WEDNESDAY NIGHT & THURSDAY: Cloudy. Additional episodes of rain/ice possible. Temperatures may remain steady. Wind variable 5-15 MPH.

DAYS 6-10 (JANUARY 26-30)

Additional areas of low pressure bringing opportunities for rain/ice/snow to the region for the first few days of this period before a drying trend. Temperatures variable, averaging slightly above normal.

DAYS 11-15 (JANUARY 31 – FEBRUARY 4)

Another winter weather threat early to mid period. Temperatures trend colder.

DAYS 1-5 (JANUARY 20-24)

A “used” Arctic airmass gives us a cold weekend. This air is indirect in its delivery, having modified after freezing areas to our west over the last several days, so we do not get the brunt of that, but a lesser version. Nevertheless, it’ll be our coldest daytime of the season so far today, with clouds dominant as a weak trough of low pressure crosses the region. A weak surface boundary will help wring out some snow showers this afternoon and evening that can coat the ground easily if they come down heavy enough or long enough. A gusty breeze will contribute to a stinging wind chill. Sunday, we see more sun and a very slight temperature moderation as a weak ridge of high pressure moves into the region. High pressure sinks to the south of our region Monday allowing temperatures to return to seasonable, or even a slight bit above normal with continued fair weather. This “milder” air holds into Tuesday, but don’t expect it to be a warm day. This is only a slightly warmer than normal air mass flowing over an icy snow cover in much of the region and is comparable to moving from your freezer to your refrigerator. And even the modest warm-up will be somewhat short-lived. Not that we’re going back to the levels of this weekend, but cold high pressure in eastern Canada will send a front down from the north later Tuesday, with colder air arriving. At the same time, Pacific moisture, having made a cross-country trek, will arrive Tuesday night, just in time to wring out some snow across the region. The boundary that moved through late Tuesday does try to come back as a warm front by Wednesday, but may have difficulty doing so. For now I’d lean toward a cloud-dominated, near to above normal temperature day Wednesday, with the potential for a fairly wide temperature contrast from north to south. However, there are a few more days to work out the intricate details there.

TODAY: Mostly cloudy. Late-day snow showers. Highs 18-25. Wind N 5-15 MPH, higher gusts. Wind chill as low as 10.

TONIGHT: Mostly cloudy early with lingering snow showers mainly I-95 & I-90 regions east and south. Partly cloudy overnight. Lows 6-13. Wind N 5-15 MPH, higher gusts. Wind chill near to below 0.

SUNDAY: Sunny. Highs 24-31. Wind NW 5-15 MPH. Wind chill near to below 20.

SUNDAY NIGHT: Mostly clear. Lows 12-19. Wind W 5-15 MPH.

MONDAY: Mostly sunny. Highs 32-39. Wind SW 5-15 MPH.

MONDAY NIGHT: Mostly clear. Lows 22-29. Wind W 5-15 MPH.

TUESDAY: Increasing clouds. Highs 33-40 by midday, then turning colder. Wind shifting to NE 5-15 MPH, then diminishing.

TUESDAY NIGHT: Cloudy. Snow likely. Lows 23-30. Wind NE under 10 MPH.

WEDNESDAY: Cloudy. Chance mix/rain at night. Highs 35-42 north, 43-50 south. Wind variable up to 10 MPH.

DAYS 6-10 (JANUARY 25-29)

One more push of mild air combined with a disturbance brings a rain chance to the region to start the period, but if cold air remains locked in at the surface, some icy conditions cannot be ruled out in some areas to the north. Colder air wins out and look for a potential weekend (January 27-28) winter weather event, followed by a drier, colder end to the period, based on current expected timing in the medium range.

DAYS 11-15 (JANUARY 30 – FEBRUARY 3)

Another winter weather threat around mid period. Temperatures variable, probably slightly above normal for the period.

DAYS 1-5 (JANUARY 19-23)

A storm passing by to our south today keeps us overcast and tries to throw its shield of snow across the region, but dry air wins to keep it minimal, and resultant accumulation minimal as well. The exception will be the MA South Shore and Cape Cod which gets higher amounts due to ocean enhancement – a result of a cold north northeast wind off the relatively warm Atlantic waters. This comes to an end tonight and the coldest air of the season is ours for the weekend. Saturday will feature lots of clouds, and Sunday lots of sun. A gusty breeze will make it feel even colder both days. In addition, a weak disturbance coming through Saturday evening will bring the chance of a few light snow showers and only a tiny risk of a slightly heavier one. High pressure shifts to the south and allows for a temperature moderation with fair weather Monday. But Tuesday, a cold front drops down from the north, and while it may be “mild” to start, it turns colder later, and at the same time moisture from the west will start to increase the cloud cover. Snow may arrive as warmer air aloft makes an approach by late Tuesday.

TODAY: Cloudy. Periods of light snow midday on especially I-95 east and I-90 south, but accumulations generally under 1 inch except 1-3 inches with locally heavier from MA South Shore to Cape Cod. Highs 24-31. Wind NE-N 5-15 MPH.

TONIGHT: Snow lingers early with small additional accumulation possible MA South Shore / Cape Cod, otherwise cloudy. Lows 11-18. Wind N 5-15 MPH. Wind chill below 10.

SATURDAY: Mostly cloudy. Highs 18-25. Wind N 5-15 MPH, higher gusts. Wind chill as low as 10.

SATURDAY NIGHT: Mostly cloudy with a chance of a snow shower evening. Clearing overnight. Lows 6-13. Wind N 5-15 MPH, higher gusts. Wind chill near to below 0.

SUNDAY: Sunny. Highs 25-32. Wind NW 5-15 MPH. Wind chill near to below 20.

SUNDAY NIGHT: Mostly clear. Lows 12-19. Wind W 5-15 MPH.

MONDAY: Mostly sunny. Highs 32-39. Wind SW 5-15 MPH.

MONDAY NIGHT: Mostly clear. Lows 22-29. Wind W 5-15 MPH.

TUESDAY: Increasing clouds. Chance of snow at night. Highs 33-40 by midday, then turning colder. Wind shifting to NE 5-15 MPH.

DAYS 6-10 (JANUARY 24-28)

A battle-zone between mild to the south and Canadian cold, adding in moisture from a Pacific jet stream, produces unsettled weather through mid period. Temperature and precipitation details to be determined. Fair, cold weather for the end of the period.

DAYS 11-15 (JANUARY 29 – FEBRUARY 2)

Indication is for seasonable cold as the average but somewhat variable temperatures with 1 or 2 additional systems potentially bringing precipitation to the region.

DAYS 1-5 (JANUARY 18-22)

A disturbance will bring lots of clouds and a touch of light snow later today. A stronger storm moving just south of the region will be just far enough away to spare us a larger snowfall, but close enough for a light to moderate snowfall on Friday and Friday night. The moderate amounts should be confined to the MA South Shore / Cape Cod regions due to ocean enhancement. The coldest weather of the winter so far arrives Saturday, possibly accompanied by a few snow showers, but we’re looking at a mainly dry and cold weekend overall. Fair weather continues with a temperature moderation for Monday.

TODAY: Becoming cloudy. Light snow in the afternoon and early evening, favoring areas along and south of I-90, with a dusting to 1/2 inch. Highs 25-32. Wind W up to 10 MPH.

TONIGHT: Mostly cloudy. Lows 15-22. Wind N up to 10 MPH.

FRIDAY: Cloudy. Afternoon snow, especially I-90 south and I-95 east. Highs 25-32. Wind N 5-15 MPH.

FRIDAY NIGHT: Cloudy. Snow in the evening, especially I-90 south and I-95 east. Accumulation 1-3 inches except under 1 inch Merrimack Valley MA northward and 3-6 inches Plymouth County MA to Cape Cod. Lows 15-22. Wind NW 5-15 MPH, higher gusts.

SATURDAY: Variably cloudy. Chance of snow showers. Highs 22-29. Wind NW 10-20 MPH, higher gusts.

SATURDAY NIGHT: Partly cloudy with a chance of snow showers evening. Clear overnight. Lows 8-15. Wind NW 5-15 MPH.

SUNDAY: Sunny. Highs 25-32. Wind W 5-15 MPH.

SUNDAY NIGHT: Mostly clear. Lows 12-19. Wind W 5-15 MPH.

MONDAY: Partly cloudy. Highs 32-39. Wind SW 5-15 MPH.

DAYS 6-10 (JANUARY 23-27)

Milder weather during this period with temperatures averaging near to above normal but no major warm-up indicated. Also looks like a fairly unsettled stretch of weather quite possible, starting on January 24. More detail to come in future updates.

DAYS 11-15 (JANUARY 28 – FEBRUARY 1)

Trend back to colder, additional storminess possible including snow chances.

DAYS 1-5 (JANUARY 17-21)

Our weather today is controlled by large weather systems – a big low in eastern Canada, and a big high pressure area in the south central US. Between these two features we have a west northwest air flow of cold air with fair weather. However, while weather itself does not present a hazard today, other than making you chilly if you’re outside in the gusty breeze, the real hazard lies underfoot, where any untreated wet/slushy surfaces from yesterday have frozen solid and will remain frozen through today, tonight, and tomorrow as well if not impacted by sun’s heat or treated by someone. Use caution if walking and/or driving over any of these surfaces – and there are many! Back to weather, it’s a quiet but cold one tonight. My Thursday forecast previously read “partly sunny” in response to clouds from a weak disturbance, but it’s become apparent that this disturbance carries enough with it to produce an overcast sky and a period of light snowfall for the region, especially in the I-90 corridor southward, Thursday afternoon and evening. Accumulations from this will be minor, on the order of a dusting to 1/2 inch, but any light accumulation on already icy surfaces is hazardous, and the snow can cover up the ice to make it unseen. So this little system does its part to continue the walking/driving hazard on untreated surfaces. Further, we have another storm to contend with late in the week – Friday afternoon and evening for the most part. The upper air pattern expected doesn’t support a full-on hit of a significant winter storm, but rather a glancing blow of a strong storm evolving just too far offshore to dump maximum snowfall on the region. So for now I expect a light snowfall favoring areas from the I-90 and I-95 belts south and east. This will be followed by a very cold start to the weekend on Saturday. We’ll have to watch for a few flurries or isolated snow squalls as the cold air comes into the region with a little instability from Friday night through Saturday too. I’ll take a closer look at that possibility as we go through the week. Sunday’s weather will be fair and cold with high pressure in control.

TODAY: Sunny. Highs 25-32. Wind WNW 5-15 MPH.

TONIGHT: Clear evening. High clouds arrive overnight. Lows 12-19. Wind WNW up to 10 MPH.

THURSDAY: Becoming cloudy. Light snow in the afternoon and early evening, favoring areas along and south of I-90, with a dusting to 1/2 inch. Highs 25-32. Wind W up to 10 MPH.

THURSDAY NIGHT: Partial clearing evening. Clouds fill back in overnight. Lows 15-22. Wind N up to 10 MPH.

FRIDAY: Cloudy. Afternoon snow, especially I-90 south and I-95 east. Highs 25-32. Wind N 5-15 MPH.

FRIDAY NIGHT: Cloudy. Snow in the evening, especially I-90 south and I-95 east. Lows 15-22. Wind NW 5-15 MPH, higher gusts.

SATURDAY: Variably cloudy. Chance of snow showers. Highs 22-29. Wind NW 10-20 MPH, higher gusts.

SATURDAY NIGHT: Partly cloudy with a chance of snow showers evening. Clear overnight. Lows 8-15. Wind NW 5-15 MPH.

SUNDAY: Sunny. Highs 25-32. Wind W 5-15 MPH.

DAYS 6-10 (JANUARY 22-26)

“January thaw” with milder weather – temperatures near to mostly above normal. After a fair weather beginning, unsettled weather becomes more likely mid to late period, favoring snow/mix at first, then mix/rain eventually. But there are a lot of moving parts to this outlook with much fine-tuning to take place.

DAYS 11-15 (JANUARY 27-31)

A trend back to colder weather takes place in the final days of January with additional unsettled weather from at least one storm system – rain/mix/snow chances.

DAYS 1-5 (JANUARY 16-20)

A relatively weak low pressure area tracks northeastward today, making a pretty close pass, probably over Cape Cod / Islands later in the day before exiting via the Gulf of Maine. This track brings a light to moderate snowfall to the region in general, but also allows enough warm air to come in to change the snow to rain over Cape Cod and the Islands and at least bring some mix/change up toward the Boston area for a time during the afternoon. Pockets of sleet and freezing rain are possible in the mix area. None of that should be too long lasting, but untreated roads that see frozen / freezing precipitation can be slick today, so use caution and allow extra time if traveling. Conditions improve quickly tonight in terms of weather, but again any untreated surfaces that saw some melting or areas that saw rain will ice over due to cold air becoming firmly established. We have a dry and chilly midweek ahead as high pressure controls the weather. Watching another storm threat for late week – timing later Friday to very early Saturday right now. As it stands now, the upper level pattern doesn’t allow this to become a big winter storm for the region, but a light to moderate snowfall potential is definitely there, favoring areas further south. But there are still a few days to go to fine tune the details on this one.

TODAY: Overcast. Snow of varying intensity, mostly light to moderate, but changing to rain Islands / Cape Cod, and mixing with or changing to rain, freezing rain, and sleet for a while South Shore up to about Boston briefly, before ending as snow or snow showers early this evening. Snowfall accumulation a general 2 to 5 inches, highest amounts more likely west of I-95 including a few 5 to 7 inch potential totals hills north central MA to southwestern NH, and just a coating to 2 inches South Coast, least Cape Cod and Islands. Highs 25-32 west of I-95, 32-39 east of I-95. Wind NE 5-15 MPH.

TONIGHT: Gradual clearing. 15-22. Wind NW 5-15 MPH.

WEDNESDAY: Mostly sunny. Highs 25-32. Wind NW 5-15 MPH.

WEDNESDAY NIGHT: Clear. Lows 12-19. Wind NW up to 10 MPH.

THURSDAY: Partly sunny. Highs 26-33. Wind W up to 10 MPH.

THURSDAY NIGHT: Mostly clear. Lows 13-20. Wind N under 10 MPH.

FRIDAY: Clouding over. Snow likely by later in the day and at night. Highs 27-34. Wind N-NE 5-15 MPH.

FRIDAY NIGHT: Overcast. Snow likely Lows 15-22. Wind NE-N 5-15 MPH.

SATURDAY: Clearing. Highs 22-29. Wind N 10-20 MPH.

DAYS 6-10 (JANUARY 21-25)

A moderating temperature trend takes place during this period. Starting with fair weather then turning unsettled with some snow/mix/rain later in the period.

DAYS 11-15 (JANUARY 26-30)

Pattern look unsettled into or through mid period with a mild start then a colder trend and some potentially messy winter weather returning. Drier, seasonable trend late period.

DAYS 1-5 (JANUARY 15-19)

High pressure brings dry and cold weather to the region during today. A wave of low pressure heads northeastward off the coast Tuesday, passing southeast of New England, bringing our region a widespread light to borderline moderate snowfall. This will be followed by a dry and cold midweek. Another storm threat looms later in the week with a chance of snow returning during Friday – details TBD depending on low pressure’s track.

TODAY (MLK JR DAY): Mostly sunny. Highs 25-32. Wind W 5-15 MPH, higher gusts possible. Wind chill below 20 at times.

TONIGHT: Clear evening. Clouds arrive overnight. Lows 16-23. Wind SW under 10 MPH.

TUESDAY: Cloudy. Snow likely, with accumulations of 2 to 4 inches in general, a few under 2 inch amounts MA South Shore to South Coast, a few isolated amounts up to 5 inches possible north and west of Boston. Highs 26-33. Wind NE-N 5-15 MPH.

TUESDAY NIGHT: Gradual clearing. 15-22. Wind NW 5-15 MPH.

WEDNESDAY: Mostly sunny. Highs 25-32. Wind NW 5-15 MPH.

WEDNESDAY NIGHT: Clear. Lows 12-19. Wind NW up to 10 MPH.

THURSDAY: Partly sunny. Highs 26-33. Wind W up to 10 MPH.

THURSDAY NIGHT: Mostly clear. Lows 13-20. Wind N under 10 MPH.

FRIDAY: Clouding over. Snow likely by later in the day and at night. Highs 27-34. Wind N-NE 5-15 MPH.

DAYS 6-10 (JANUARY 20-24)

Fair weather returns for the January 20-21 weekend with below normal temperatures, coldest January 20. A minor system may bring a few snow showers to the region around the middle of the period but overall fair weather and a moderating temperature trend expected later in the period.

DAYS 11-15 (JANUARY 25-29)

Watching for a potential storm somewhere in the early to mid portion of this period with fair weather to return behind it. Temperatures closer to normal.