DAYS 1-5 (OCTOBER 31 – NOVEMBER 4)

October comes to an end with a dry but chilly Halloween. We’ll see plenty of sun today but there will be a strip of clouds cutting across southeastern areas during the day which will start to increase by day’s end once again. This is due to air lifting over the frontal boundary that went by us as a cold front late Saturday then was the avenue for Sunday’s & Monday’s rainfall. But we have a well-timed break for today, including this evening’s trick-or-treat which will take place with dry weather, but temperatures from the lower 40s to upper 30s across the area. At least it will not be all that windy. Wednesday will be an unsettled day to welcome the month of November. Another wave of low pressure moves along the frontal boundary just to our southeast, passing far enough offshore to bring the steadiest rain to Cape Cod and the Islands, with this rain shield probably up about as far as the I-95 belt. With marginal temperatures / cold air, can’t rule out a mix with wet snow or sleet briefly in some areas, but no accumulation will occur. Additionally, an upper low moving across the region and a northeast wind can also combine for additional showers of mostly rain (maybe some mix) elsewhere in the region mainly during the morning through midday hours. Later Wednesday we dry out as the entire system pulls off to the east. Thursday and Friday will be fair and cool with high pressure building in. Saturday may start with lots of clouds as a warm front moves through, but this looks like a dry frontal passage, and would lead to a milder day with the return of sunshine, based on expecting timing.

TODAY: Sunshine, but limited at times South Coast to MA South Shore. Highs 47-54. Wind NW 5-15 MPH, diminishing.

TONIGHT: Clouds increase and thicken. Rain arrives overnight South Coast to MA South Shore, up to around I-90 / I-95 by dawn, may mix with wet snow and/or sleet in some locations. Lows 33-40. Wind N-NE up to 10 MPH.

WEDNESDAY: Cloudy start with early-day rain most likely RI and southeastern MA, may briefly be mixed with wet snow and/or sleet. Lots of clouds linger thereafter with a few rain showers, some possibly mixed with snow/sleet. Highs 42-49. Wind NE-N 5-15 MPH.

WEDNESDAY NIGHT: Clearing. Lows 30-37. Wind N-NW 5-15 MPH.

THURSDAY: Sunny. Highs 46-53. Wind NW 5-15 MPH.

THURSDAY NIGHT: Clear. Lows 28-35. Wind W under 10 MPH.

FRIDAY: Mostly sunny. Highs 48-55. Wind W up to 10 MPH.

FRIDAY NIGHT: Clouding up. Lows 38-45. Wind calm.

SATURDAY: Cloudy start, then sun returns. Highs 56-63. Wind SW up to 10 MPH.

DAYS 6-10 (NOVEMBER 5-9)

Cold front approaches November 5 with some clouds but continued mild weather, then cooler November 6 with no more than a passing rain shower. Stronger low pressure / frontal system November 7 with better rain chance. Dry, cooler to colder weather returns November 8 with windy conditions, then more tranquil but still chilly with fair weather November 9 as high pressure builds in.

DAYS 11-15 (NOVEMBER 10-14)

Leaning toward the greatest chance for unsettled weather during this middle portion of this period. Temperatures near to below normal.

DAYS 1-5 (OCTOBER 30 – NOVEMBER 3)

A wave of low pressure prolongs our unsettled weather today, with periods of rain. The frontal boundary that the low is riding along lifts northward far enough to get the South Coast region and possibly up to about I-90 into the “warm sector” so those areas will be mildest today before the front heads back south behind the low. The rain ends as this happens later today, and this sets us up for a dry but chilly Halloween. But another low pressure wave will be traveling along that frontal boundary. This one passes a bit further south and is likely to only clip areas from about I-95 southeastward with precipitation Wednesday morning – mainly rain, but can’t rule out some wet snowflakes or ice pellets mixing in for a brief time. This exits and sun returns before the day is over, then high pressure dominates with fair weather Thursday and Friday along with chilly air.

TODAY: Cloudy. Periods of rain, ending late. Highs 48-55. Wind NE-N 5-15 MPH.

TONIGHT: Clearing. Lows 33-40. Wind N-NW 5-15 MPH.

TUESDAY: Sunshine followed by clouds. Highs 47-54. Wind NW 5-15 MPH.

TUESDAY NIGHT: Cloudy. Rain arrives South Coast late evening, up to around I-90 / I-95 overnight, may mix with wet snow and/or sleet briefly. Lows 33-40. Wind N-NE up to 10 MPH.

WEDNESDAY: Cloudy start with early-day rain most likely RI and southeastern MA, may briefly be mixed with wet snow and/or sleet, then clouds thin for some sun as the day goes on. Highs 43-50. Wind NE-N 5-15 MPH.

WEDNESDAY NIGHT: Clearing. Lows 31-38. Wind N-NW 5-15 MPH.

THURSDAY: Sunny. Highs 46-53. Wind NW 5-15 MPH.

THURSDAY NIGHT: Clear. Lows 28-35. Wind W under 10 MPH.

FRIDAY: Mostly sunny. Highs 48-55. Wind W up to 10 MPH.

DAYS 6-10 (NOVEMBER 4-8)

Looking ahead to the weekend of November 4-5, it looks rain-free and milder. A warm front may produce clouds to start, and an approaching cold front may bring more clouds to end it. This front nearby November 6 brings a better rain shower threat and another low pressure wave and upper low may combine for more unsettled weather and below normal temps November 7 before it clears late in this period.

DAYS 11-15 (NOVEMBER 9-13)

Dry, cooler early period, return of unsettled weather possible later period. Still a low confidence forecast.

DAYS 1-5 (OCTOBER 29 – NOVEMBER 2)

Summer’s over (again), and now we’re back to reality – a much cooler and unsettled weather pattern. However, well-timed dry weather is expected for Halloween. Temperatures today will be as much as 20 to 30 degrees cooler than those of yesterday, under a thickening cloud cover with eventual rain, once dry air at the surface is overcome. Today’s rainfall comes courtesy a mid to upper level disturbance bringing warmer air aloft into the region. A second disturbance joins the party Monday in the form of a wave of low pressure developing on a frontal boundary and moving east northeast through the region. The front itself may lift far enough north for areas south of I-90 to get into the warm sector before the front sags back to the south. Periodic rain can be expected through at least midday Monday, with a drying trend following later in the day and especially Monday night. Tuesday looks dry, despite any sun giving way to more clouds in advance of the next low pressure wave. But that timing of that system allows dry weather to dominate through the evening hours, but with very cool air. And then the next wave of low pressure moves by to our south and southeast very late Tuesday night into Wednesday. The trend for this system on medium range guidance has been a little to the south, with those simulations indicating the greatest chance of precipitation would be in southeastern MA and RI earlier Wednesday, with limited to no precipitation the west and north. The cold air around is marginal enough to support frozen precipitation for a period of time, but this would favor higher elevations to the north and west of Boston, so if the precipitation shield is further south and east, the odds of seeing anything frozen go way down. This is the way I’m leaning at this point in time. In either case, by Thursday we’ll be back in fair and chilly weather as high pressure moves in.

TODAY: Clouding up. Periods of light rain midday on. Highs 50-57. Wind N-NE up to 10 MPH except up to 15 MPH over southeastern MA.

TONIGHT: Cloudy. Periods of rain. Lows 41-48. Wind NE 5-15 MPH.

MONDAY: Cloudy. Periods of rain, ending late. Highs 48-55. Wind NE-N 5-15 MPH.

MONDAY NIGHT: Clearing. Lows 33-40. Wind N-NW 5-15 MPH.

TUESDAY: Sunshine, late clouds. Highs 47-54. Wind NW 5-15 MPH.

TUESDAY NIGHT: Cloudy. Rain arrives South Coast late evening, up to around I-90 / I-95 overnight. Lows 35-42. Wind N-NE up to 10 MPH.

WEDNESDAY: Cloudy start with early-day rain most likely RI and southeastern MA then clouds may break for sun by later in the day. Highs 43-50. Wind NE-N 5-15 MPH.

WEDNESDAY NIGHT: Clearing. Lows 35-42. Wind N-NW 5-15 MPH.

THURSDAY: Sunny. Highs 50-57. Wind NW 5-15 MPH.

DAYS 6-10 (NOVEMBER 3-7)

Dry weather to start the period with a warming trend for temperature. Unsettled weather at times thereafter as a frontal boundary will be nearby along with variable temperatures – details to be fine-tuned over time.

DAYS 11-15 (NOVEMBER 8-12)

Dry, cooler early period, return of unsettled weather possible later period. Low confidence forecast though with no real detail to be attempted too far in advance.

DAYS 1-5 (OCTOBER 28 – NOVEMBER 1)

November has made it into the 5-day forecast! And when we get there, it’ll feel like it! In fact, it’ll start to feel a bit like that even before we get there. But let’s not get too far ahead of ourselves. Before that happens, we have one more feel-of-summer days to enjoy today. This is the day that Boston can top a record high, because today’s is a few degrees lower than the previous couple that they fell shy of. A high of 82 at Logan today will establish a new record, and I figure they may get close at least, likely tie it, and possibly break it. The chance goes up as a west wind picks up speed and helps enhance the down slope effect which warms the air heading from the hills to the coastal plain. We’ll see how it goes. Otherwise our warmer than normal day will be punctuated by plenty of sun, but later in the day you’ll notice some clouds heading across the sky from west northwest to east southeast, and a couple of these, particularly in southern NH and/or northern MA, may produce a few light rain showers, albeit brief wherever they may occur. This is a cold front, and it opens the door to a different feel. Considering today’s high temps around 80 for many, after that front goes by tonight we’ll see quite the temperature fall as many areas land in the 40s by morning. And Sunday, we don’t see a whole lot of temperature recovery, so my previous overly-optimistic temperature forecast will have to be adjusted quite a bit. Sorry! And once the cool air is in, it’s hanging around for a while. We also have a wave of low pressure to come along the front after it goes by, and brings us some wet weather later Sunday through Monday. Initially the rain will struggle to overcome some dry air so a good portion of Sunday will stay rain-free, with just patches of light rain moving into the region during the afternoon. A more saturated atmosphere Sunday night and Monday will allow for occasional to frequent periods of rainfall, which will taper off later Monday as the low pressure wave starts to move beyond the region. This will allow dry weather to return for Tuesday – Halloween – but with the arrival of a reinforcing shot of polar air, it’s going to be a chilly trick-or-treat on Tuesday evening. We’ll already be watching another wave of low pressure moving up along the front that still sits not far to the south, so while I do think any precipitation will hold off for All Hallow’s Eve activities, the overnight hours into Wednesday look overcast and wet with more rain, and it can be cold enough for some mix/frozen precipitation to occur for a period of time over interior higher elevations – just a little memo from mother nature about winter drawing closer. Either way, with that system around, the high temps Wednesday will feel more like late November rather than the first of the month.

TODAY: Mostly sunny, but some late-day clouds may produce a sprinkle of rain southern NH and/or northern MA. Highs 76-83 except cooler South Coast. Wind SW 5-15 MPH, higher gusts, shifting to W.

TONIGHT: Partly cloudy early, then clearing. Lows 45-52. Wind W 5-15 MPH, a few higher gusts, shifting to NW.

SUNDAY: Clouding up. Patchy light rain in the afternoon. Highs 48-55. Wind NW 5-15 MPH shifting to NE.

SUNDAY NIGHT: Cloudy. Periods of rain. Lows 42-49. Wind NE 5-15 MPH.

MONDAY: Cloudy. Periods of rain, ending late. Highs 52-59. Wind NE-N 5-15 MPH.

MONDAY NIGHT: Clearing. Lows 33-40. Wind N-NW 5-15 MPH.

TUESDAY: Sunshine, late clouds. Highs 47-54. Wind NW 5-15 MPH.

TUESDAY NIGHT: Clouding over. Overnight rain arriving, may be mixed with sleet and/or snow over interior higher elevations of MA and southwestern NH. Lows 35-42. Wind N-NE up to 10 MPH.

WEDNESDAY: Cloudy. Rain likely, may be mixed with some frozen precipitation for a while interior higher elevations mainly north central MA and southwestern NH. Highs 42-49. Wind NE 5-15 MPH.

DAYS 6-10 (NOVEMBER 2-6)

Dry weather returns with below normal temperatures early in the period. Moderating temperature mid period but a warm front may bring clouds followed by a cold front bringing a brief rain chance before dry, cooler weather returns at the very end of the period, based on current timing.

DAYS 11-15 (NOVEMBER 7-11)

A weak weather system coming through early in the period with some unsettled weather, then a return to dry weather and a cool-down followed by another warm-up.

DAYS 1-5 (OCTOBER 27-31)

Two more days that feel like summer come to us courtesy a strong ridge of high pressure in the eastern US, and then this ridge weakens and sinks to the south to allow a frontal boundary to slide across the region from northwest to southeast. The front passes by with little fanfare other than a few clouds and a wind shift Saturday evening. After this, we see a cooling trend from Sunday through Tuesday. A wave of low pressure moving along the frontal boundary will bring some wet weather at times later Sunday and Monday. A second low pressure wave approaching may increase the cloud cover later Tuesday, but right now the Halloween outlook is dry, just quite cool.

TODAY: Mostly sunny. Highs 75-82, a little cooler South Coast. Wind SW 5-15 MPH.

TONIGHT: Mostly clear. Fog patches in low elevations. Lows 53-60. Wind SW up to 10 MPH.

SATURDAY: Mostly sunny. Highs 75-82, a little cooler South Coast. Wind SW 5-15 MPH, higher gusts.

SATURDAY NIGHT: Partly cloudy, then clearing. Lows 48-55. Wind SW 5-15 MPH shifting to NW.

SUNDAY: Increasing clouds. Late-day rain possible. Highs 60-67. Wind NW to N up to 10 MPH.

SUNDAY NIGHT: Cloudy. Periods of rain. Lows 45-52. Wind N-NE 5-15 MPH.

MONDAY: Cloudy. Periods of rain, ending late. Highs 52-59. Wind NE-N 5-15 MPH.

MONDAY NIGHT: Clearing. Lows 33-40. Wind N-NW 5-15 MPH.

TUESDAY: Sunshine, late clouds. Highs 50-57. Wind NW 5-15 MPH.

DAYS 6-10 (NOVEMBER 1-5)

Watching for a wave of low pressure at the start of the period to bring a period of wet weather, mainly rain but may include some mix/frozen for a brief time somewhere away from the coast. This will be followed by a dry stretch, initially chilly, then with a temperature moderation as high pressure approaches from the west then sinks to the south.

DAYS 11-15 (NOVEMBER 6-10)

A weak weather system coming through early in the period with some unsettled weather, then a return to dry weather and a chill-off followed by another warm-up.

DAYS 1-5 (OCTOBER 26-30)

Our weather is going to undergo a significant change before this 5-day period ends, but it starts out with 3 more days of anomalous warmth, due to a strong ridge of high pressure over the southeastern US. Being near the northern edge of this ridge, we see lots of clouds in our sky, but as the ridge nudges northward it will help push those clouds away later today and even more so for Friday and Saturday. Those 2 days, other than the lower late October sun angle and changing foliage, will remind you a bit of summer. But “summer’s” days are numbered. As high pressure ridging weakens and starts to retreat southward, a frontal boundary held at bay will finally be able to move through the region from northwest to southeast Saturday night and Sunday, introducing the beginning of a significant cool-down. The chilly air won’t come blasting in all at once though. Sunday will still be mild in comparison to normal, just not as warm as Saturday. We’ll also see the return of cloudiness and eventually a shower chance as a wave of low pressure along the frontal boundary approaches our region late in the day. Based on current timing and more reliable guidance, I think we will get through a fair amount of the day Sunday without a wet weather threat, and that most of the rainfall from this wave will occur Sunday night and the first half of Monday. Later Monday we should see a drying trend with chilly air becoming more established as the low pressure wave departs the region.

TODAY: Mostly cloudy to partly sunny. Highs 68-75, coolest South Coast. Wind SW 5-15 MPH.

TONIGHT: Partly cloudy to mostly clear. A few fog patches in low elevations. Lows 50-57. Wind SW up to 10 MPH.

FRIDAY: Mostly sunny. Highs 71-78, a little cooler South Coast. Wind SW 5-15 MPH.

FRIDAY NIGHT: Mostly clear. Fog patches in low elevations. Lows 50-57. Wind SW up to 10 MPH.

SATURDAY: Mostly sunny. Highs 72-79, a little cooler South Coast. Wind SW 5-15 MPH, higher gusts.

SATURDAY NIGHT: Mostly clear. Lows 48-55. Wind SW 5-15 MPH shifting to NW.

SUNDAY: Increasing clouds. Late-day rain possible. Highs 60-67. Wind NW to N up to 10 MPH.

SUNDAY NIGHT: Cloudy. Periods of rain. Lows 45-52. Wind N-NE 5-15 MPH.

MONDAY: Cloudy with rain likely in the morning. Breaking clouds afternoon. Highs 52-59. Wind NE-N 5-15 MPH.

DAYS 6-10 (OCTOBER 31 – NOVEMBER 4)

Temperatures below normal during this period. Current outlook is dry for Halloween, then watching a wave of low pressure with a precipitation chance (mainly rain but some frozen precipitation may be involved especially inland higher elevations if the coverage is great enough) around November 1, before dry weather returns with below normal temps, then a moderation. Clouds and a shower threat may return as early as the very end of the period.

DAYS 11-15 (NOVEMBER 5-9)

Unsettled weather possible at the start of the period before a push of milder air and fair weather. A brief rain shower chance introduces cooler weather again before the end of the period.

DAYS 1-5 (OCTOBER 25-29)

A mild to warm pattern is ours for the balance of this week, even into the weekend, and possibly even through the entire weekend to some degree (no pun intended). The big weather driver is a large upper level high pressure ridge to the south of New England and associated surface high pressure. We’ll see a couple disturbances bringing clouds to our region, but no rain threat. It won’t be until sometime over the weekend that a frontal boundary will make a charge at the region, probably to be thwarted by the ridge. This presents our only opportunity to see showers on Sunday, but even much of that day can turn out to be rain-free, but likely cooler than Saturday, which may be the warmest of this entire stretch.

TODAY: Sunny start, then variably cloudy. Highs 64-71. Wind SW 5-15 MPH, higher gusts.

TONIGHT: Variably cloudy. Lows 48-55. Wind SW 5-15 MPH.

THURSDAY: Partly sunny. Highs 68-75. Wind SW 5-15 MPH, higher gusts.

THURSDAY NIGHT: Partly cloudy. Lows 48-55. Wind SW 5-15 MPH.

FRIDAY: Partly cloudy. Highs 71-78. Wind SW 5-15 MPH.

FRIDAY NIGHT: Partly cloudy. Lows 50-57. Wind SW 5-15 MPH.

SATURDAY: Mostly sunny. Highs 72-79. Wind SW 5-15 MPH, higher gusts.

SATURDAY NIGHT: Partly cloudy. Lows 51-58. Wind SW 5-15 MPH.

SUNDAY: Variably cloudy. Chance of rain showers. Highs 62-69. Wind SW to variable 5-15 MPH.

DAYS 6-10 (OCTOBER 30 – NOVEMBER 3)

A general westerly flow pattern will rule our weather from the end of October into the first few days of November. Upper level high pressure to the south weakens and allows the frontal boundary to push through sometime in last couple days of the month. This front does produce a shower threat and maybe a period of rain (more likely October 30) if a wave of low pressure can form along it. As the front takes its time getting to our south, we’ll have to watch for an additional wave of low pressure with a precipitation threat sometime in the November 1-2 time frame as it turns colder, and then fair, chilly weather should take over by period’s end.

DAYS 11-15 (NOVEMBER 4-8)

A temperature rebound with milder weather in this period, but a bit early to time any unsettled weather threats, though leaning toward the early portion of the period for that with the initial return of milder air.

DAYS 1-5 (OCTOBER 24-28)

Overnight, there were some lingering patches of stratocumulus clouds around, but the shield of high and mid level clouds held off long enough to allow temps to fall to 35-40 over the interior low elevations, where some frost has likely occurred for the first time this season. Temperatures will stay above 40 in urban areas and along the coast. A batch of clouds with warm air moving in aloft will move through the region this morning and midday but give way to more sun as the day goes on, and this is the start of a warming trend that will last through late this week, along with dry weather. This will be caused by a significant ridge of high pressure and a related surface low to our south. We will have to deal with periods of cloudiness with disturbances moving along the jet stream just to our north. Right now, it continues to look like a surface frontal boundary separating our mild air from colder Canadian air will stay to our north into the weekend. There is no rain in the forecast for the WHW region for the next 5 days.

TODAY: Variably cloudy through midday then becoming mostly sunny. Highs 57-64. Wind calm, then SW up to 10 MPH.

TONIGHT: Mostly clear. Lows 43-50. Wind SW 5-15 MPH.

WEDNESDAY: Partly cloudy. Highs 64-71. Wind SW 5-15 MPH, higher gusts.

WEDNESDAY NIGHT: Variably cloudy. Lows 48-55. Wind SW 5-15 MPH.

THURSDAY: Partly sunny. Highs 68-75. Wind SW 5-15 MPH, higher gusts.

THURSDAY NIGHT: Partly cloudy. Lows 48-55. Wind SW 5-15 MPH.

FRIDAY: Partly cloudy. Highs 71-78. Wind SW 5-15 MPH.

FRIDAY NIGHT: Partly cloudy. Lows 50-57. Wind SW 5-15 MPH.

SATURDAY: Mostly sunny. Highs 72-79. Wind SW 5-15 MPH, higher gusts.

DAYS 6-10 (OCTOBER 29 – NOVEMBER 2)

A general westerly flow pattern will rule our weather from the end of October into the first couple days of November. We’ll see upper high pressure weaken and allow the frontal boundary to the north to get into our region early in the period. This front, which may have a couple weak waves of low pressure traveling along it, will be responsible for a rain shower threat from later October 29 to early October 31, based on current timing, but adjustments will take place to pin down more specific timing. However, this does not look like a significant rain-producing situation. Temperatures trend cooler to colder. Watch for one more potential low pressure wave traveling by the region with a precipitation threat toward the end of the period, but cannot be confident of that this far in advance.

DAYS 11-15 (NOVEMBER 3-7)

Overall pattern looks dry, chilly to start, then trending milder during this period, as high pressure dominates, first sending a chilly northwesterly air flow in, then settling to the south with a more west to southwest air flow thereafter.

DAYS 1-5 (OCTOBER 23-27)

And now for something different. Upper level low pressure waves bye-bye today and heads off through eastern Canada. Meanwhile, to our southwest, high pressure ridging builds across the southeastern US early this week and establish itself pretty firmly through mid week and even beyond. This is going to play the biggest role in our weather this week, initiating a warm up that hangs around a while. Since we won’t be under the ridge itself, more on the edge of it, we’ll still be dealing with some systems moving along the jet stream, but these are also instrumental in helping to bring in the warmer air too, and what they won’t do this time is dump a lot of rain on us. First, we keep a northwest breeze and sun/cloud mix today as the last of the upper low impacts the region. Tonight, while we set up good radiational cooling and a likely frost for interior areas, some of this may be limited by a temperature-capping advancing cloud deck as warmer air moves in aloft. These clouds will hang around early Tuesday as a warm front passes by quietly, then we’ll increase the sun and see a nice temperature recovery after the chilly start. It will cool down again Tuesday night with high pressure over the region and a clear sky but any frost would be confined to interior valley locations, along with patches of ground fog. Mid to late week, high pressure shifts offshore, and we’ll be in a southwesterly air flow with fair weather and above normal temperatures, though some clouds will move through from time to time with energy traveling along the jet stream.

TODAY: Sun/cloud mix. Highs 53-60. Wind NW 5-15 MPH.

TONIGHT: Clear evening. Clouds increase overnight. Areas of frost interior suburban and rural areas. Fog patches form in low elevations and over ponds. Lows 33-40 except 40-47 immediate shoreline and urban locations. Wind calm.

TUESDAY: Lots of clouds early, then sunshine. Highs 56-63. Wind calm early, then SW up to 10 MPH.

TUESDAY NIGHT: Clear. Lows 43-50. Wind SW 5-15 MPH.

WEDNESDAY: Mostly sunny. Highs 63-70. Wind SW 5-15 MPH, higher gusts.

WEDNESDAY NIGHT: Partly cloudy. Interior lower elevation fog patches. Lows 45-52. Wind SW diminishing to under 10 MPH.

THURSDAY: Partly sunny. Highs 68-75. Wind SW 5-15 MPH, higher gusts.

THURSDAY NIGHT: Partly cloudy. Lows 48-55. Wind SW 5-15 MPH.

FRIDAY: Partly cloudy. Highs 71-78. Wind SW 5-15 MPH.

DAYS 6-10 (OCTOBER 28 – NOVEMBER 1)

Overall a westerly flow pattern will dominate the weather. What we will have to fine-tune is the position of a frontal boundary that will exist between the warmer ridge of high pressure trying to hang on to our south while colder air makes attempts to move down from Canada. So some up and down temps are likely, but leaning toward a mild to warm start then a step by step cool down. The frontal boundary is not expected to produce much other than a couple rounds of rain showers, as it stands now. Just have to work out the timing of these threats. For now lean toward October 29-30.

DAYS 11-15 (NOVEMBER 2-6)

A more northwesterly flow should allow for chilly air from Canada to become more dominant during the early days of November, along with a mostly dry pattern.

DAYS 1-5 (OCTOBER 22-26)

Low pressure continues to impact the region today, but it will be a mostly fair kind of low pressure impact. While the deck of clouds associated with yesterday’s wet weather has now lifted to our northeast and north, it will rotate back through here this evening along with a weakening area of rain showers, really becoming just light showers/sprinkles as it moves through. Before that, our sunny start to Sunday will end up as a sun/cloud mix as we pop diurnal cumulus clouds. Behind all this, another sun/cloud mix day is expected Monday, along with breezy and chilly conditions. High pressure builds in Monday night with a quick-falling temp, but also quickly happening will be an advancing high to mid level cloud deck ahead of a warm front. If this arrives quickly enough, it may put the brakes on the temperature drop pre-dawn and prevent some areas from reaching frost levels, but I still expect a fair amount of the region to see it. These clouds will be around, limiting and filtering the sun on Tuesday as the warm air advances above us first. When we’ll feel it at the surface more prominently is on Wednesday, when we’ll be in a southwesterly air flow of mild air. And this time it’s not just a one-day warm-up, but it continues through Thursday, along with fair weather in general. Patchy clouds may visit us again Thursday as a weakening frontal boundary tries to push into the region, but is thwarted by a ridge of high pressure.

TODAY: Sunny start, then clouds develop limiting the sun from midday on. Highs 52-59. Wind W 10-20 MPH, higher gusts.

TONIGHT: Mostly cloudy. Scattered to isolated rain showers north to south. Lows 42-49. Wind NW 10-20 MPH, higher gusts.

MONDAY: Sun and passing clouds. Highs 52-59. Wind NW 10-20 MPH, gusty.

MONDAY NIGHT: Clear through evening then increasing high clouds overnight. Fog patches in lowest elevations and especially over lakes/ponds. Frost likely especially outside urban centers and away from the immediate shoreline. Lows 35-42, 28-35 in normal cold spots. Wind NW 5-15 MPH early, diminishing to calm.

TUESDAY: Partial sunshine. Highs 56-63. Wind calm early, then SW up to 10 MPH.

TUESDAY NIGHT: Clear. Lows 43-50. Wind SW 5-15 MPH.

WEDNESDAY: Mostly sunny. Highs 63-70. Wind SW 5-15 MPH, higher gusts.

WEDNESDAY NIGHT: Mostly clear. Ground fog patches late evening / overnight. Lows 45-52. Wind SW diminishing to under 10 MPH.

THURSDAY: Mostly sunny to partly cloudy. Highs 65-72. Wind SW 5-15 MPH, higher gusts.

DAYS 6-10 (OCTOBER 27-31)

During the final days of October, I expect a westerly flow pattern with the potential for one or two frontal boundaries to come through the region. Currently, the indication is that moisture for these will be limited and the bigger impact will be for them to eat away at the mild pattern and turn us cooler.

DAYS 11-15 (NOVEMBER 1-5)

Cautiously confident in going with a continued westerly flow pattern and a trend to below normal temperatures, but still need to watch for moisture from the south and west that some guidance may not be seeing as of yet.

DAYS 1-5 (OCTOBER 21-25)

Unsettled weather arrived yesterday and continues through today, but we get through the morning hours without much rain in a good portion of the WHW forecast area, with one swath of showers clipping Cape Cod and largely over the water, and another one starting to move in from the west with the previously mentioned “part 2” of the system. It is this frontal boundary and developing low that will bring us most of our wet weather this afternoon and evening as it moves through. It then gets far enough north to pull the rain shield northeast and north with it, but the system will be slowing down as the larger scale trough “goes negative” or tilts westward. An increasing westerly air flow will overtake our region tonight into Sunday while we are in a drier slot. Later Sunday, the trough that used to be the original parent low will come swinging back south southeast across our region. It will contain an area of rain but the trend is for this to break up / dry up as it heads through our region, so still we see the greatest chance of Sunday’s late-day / evening rainfall in southern NH and diminishing to just patchy / showery as it heads to the south, so that some areas will see nothing at all from it. It will shift the wind to the northwest Sunday night and Monday, a gusty breeze, with chilly autumn air. High pressure then builds in Monday night setting the stage for a probable fairly widespread frost Tuesday morning. Tuesday itself will be a very nice autumn day with a milder afternoon after that chilly start. Nice weather including a warm-up is in the cards for Wednesday as we get into a southwesterly air flow on the back side of high pressure.

TODAY: Cloudy. Areas of fog early. Periodic rain showers in the morning. Widespread rain in the afternoon. Highs 60-67. Wind variable up to 10 MPH early, then E 5-15 MPH, higher gusts along the coast, becoming variable again before shifting to NW to W and increasing to 15-25 MPH toward evening.

TONIGHT: Cloudy early evening with rain ending from south to north. Breaking clouds thereafter. Lows 45-52. Wind W increasing to 15-25 MPH, higher gusts.

SUNDAY: Lots of clouds, breaks of sun. Rain chance is highest in southern NH mid to late afternoon and into northeastern MA later in the day. Highs 52-59. Wind W 15-25 MPH, higher gusts.

SUNDAY NIGHT: Mostly cloudy with numerous to scattered showers southeastern NH and northeastern MA early, scattered to isolated showers possible elsewhere, then a clearing trend overnight. Lows 42-49. Wind NW 10-20 MPH, higher gusts possible.

MONDAY: Sun and passing clouds. Highs 52-59. Wind NW 10-20 MPH, gusty.

MONDAY NIGHT: Clear. Fog patches in lowest elevations and especially over lakes/ponds. Frost likely especially outside urban centers and away from the immediate shoreline. Lows 35-42, 28-35 in normal cold spots. Wind NW 5-15 MPH early, diminishing to calm.

TUESDAY: Sunny. Highs 56-63. Wind calm early, then SW up to 10 MPH.

TUESDAY NIGHT: Clear. Lows 43-50. Wind SW 5-15 MPH.

WEDNESDAY: Mostly sunny. Highs 61-68. Wind SW 5-15 MPH, higher gusts.

DAYS 6-10 (OCTOBER 26-30)

During the home stretch of October we’ll get into a more westerly fast flow with a couple of frontal boundaries to watch. These systems should carry less moisture but can trigger sharper temperature changes, including shots of chilly air from Canada.

DAYS 11-15 (OCTOBER 31 – NOVEMBER 4)

Still low confidence but the trend here is for more moisture to be involved from the south and southwest with higher precipitation chances once again as we get into the early days of November. I can do a more specific outlook for Halloween as we get a little closer to it.

DAYS 1-5 (OCTOBER 20-24)

We enter the next unsettled weather episode today and stay in it through the weekend as we are in the zone of “weather evolution”, i.e., a complex system consisting of 3 parts (both upper level and lower level) interacting and joining forces. The end result is a powerful autumn low pressure area, but as previously stated, this end result doesn’t really take place until the system is beyond our latitude. We’ll see showers, focused to the west and more numerous later tonight, from one area of low pressure lifting northward along the coast into our region. Another round of more widespread showers occurs on Saturday as a frontal boundary and secondary low (to the primary one further northwest) get going while the main upper trough lifts through the region. As the upper trough goes “negative” (tilts to the left if you’re looking at it on a weather map), the surface low will deepen more rapidly over the Gulf of Maine while lifting toward Atlantic Canada. As this process goes on, we’ll dry out as the wind across the region shifts to the west behind the axis of surface low pressure. The old low becomes part of an elongated trough connected to the newer, stronger low, and as the process finishes up in our region, this trough axis will swing back to the southeast and cross the region later Sunday through Sunday night, bringing one more round of rain showers. The coverage on these showers will likely be highest across southern NH and northeastern MA, as they will be drying out as they head southeast, so coverage will likely drop as you go south and east. Regardless, the system has exited by early Monday, leaving us with a windy, chilly day, with fair weather (sun and passing clouds). High pressure then builds over the region for fair and more tranquil weather Monday night and Tuesday. This set-up should allow for a fairly widespread frost Tuesday morning.

TODAY: Early sun especially east central and northeastern MA to southeastern NH, otherwise clouds take over with isolated to scattered rain showers this afternoon, favoring areas west of the I-95 belt. Highs 60-67. Wind S 5-15 MPH.

TONIGHT: Mostly cloudy. Scattered to numerous rain showers likely, highest coverage west of I-95. Areas of fog. Lows 53-60. Wind SE 5-15 MPH becoming variable under 10 MPH.

SATURDAY: Cloudy. Areas of fog early. Periodic rain showers in the morning. Widespread rain showers in the afternoon. Highs 60-67. Wind variable up to 10 MPH early, then E 5-15 MPH, higher gusts along the coast, becoming variable again before shifting to W by evening.

SATURDAY NIGHT: Breaking clouds but still a passing rain shower possible in the evening. Lows 45-52. Wind W increasing to 10-20 MPH, higher gusts.

SUNDAY: Lots of clouds, breaks of sun. Rain shower chance is highest in southern NH then increases into northern MA later in the day. Highs 52-59. Wind W 10-20 MPH, higher gusts.

SUNDAY NIGHT: Mostly cloudy with widespread to numerous rain showers southern NH and northern MA becoming scattered to isolated as they push to the south during the evening. Clearing overnight. Lows 42-49. Wind NW 10-20 MPH, higher gusts possible.

MONDAY: Sun and passing clouds. Highs 52-59. Wind NW 10-20 MPH, gusty.

MONDAY NIGHT: Clear. Fog patches in lowest elevations and especially over lakes/ponds. Frost likely especially outside urban centers and away from the immediate shoreline. Lows 35-42, 28-35 in normal cold spots. Wind NW 5-15 MPH early, diminishing to calm.

TUESDAY: Sunny. Highs 56-63. Wind calm early, then SW up to 10 MPH.

DAYS 6-10 (OCTOBER 25-29)

High pressure shifts offshore providing fair weather and a mid-week warm-up. A frontal boundary should pass through the region at some point later in the week, with a much lower rain chance than previous systems, but a shift in wind bringing in cooler air from Canada around the final weekend of the month.

DAYS 11-15 (OCTOBER 30 – NOVEMBER 3)

Low confidence outlook but leaning toward high pressure providing fair weather the last couple days of October, and a trough / frontal system bringing some unsettled weather somewhere in the first couple days of November.

DAYS 1-5 (OCTOBER 19-23)

High pressure will be located just to the south and east of our region today, and with a bit of chilly air still above, we’ll see a sun/cloud mix. A complex weather system then approaches and moves into the region from the south and west on Friday into Saturday. As previously mentioned, we’re looking at 3 main players, a low pressure center moving up the coast via the Mid Atlantic, a frontal system from the west, and a low pressure area diving east southeast through the Midwest, which will eventually join the party. I’m still of the opinion that the majority of the rainfall will occur Friday night to very early Saturday with the passage of the initial low, after which the frontal boundary will produce some Saturday showers, but allow for rain-free episodes. The entire system will be evolving into a new low pressure area, really getting going during Sunday when the 3rd piece of the puzzle is in place. By then, it’s beyond us, and other than some potential back-lash showers, we’ll round out the weekend windy, chilly, and mostly dry. Influence from the system will linger through Monday with fair, breezy, chilly weather.

TODAY: Partly to mostly sunny. Highs 62-69. Wind SW 5-15 MPH.

TONIGHT: Partly to mostly cloudy. Patchy fog. Lows 52-59. Wind S up to 10 MPH.

FRIDAY: Mostly cloudy. Isolated to scattered rain showers in the afternoon. Highs 61-68. Wind S 5-15 MPH.

FRIDAY NIGHT: Mostly cloudy. Scattered to numerous rain showers likely. Areas of fog. Lows 54-61. Wind SE 5-15 MPH becoming variable under 10 MPH.

SATURDAY: Mostly cloudy. Episodes of rain showers. Highs 58-65. Wind SE to variable up to 10 MPH, shifting to W 5-15 MPH late in the day.

SATURDAY NIGHT: Mostly cloudy. A passing rain shower possible. Lows 45-52. Wind W 10-20 MPH.

SUNDAY: Sun/cloud mix. A passing rain shower possible. Highs 53-60. Wind NW 10-20 MPH, gusts 25-35 MPH.

SUNDAY NIGHT: Variably cloudy. A passing rain shower possible. Lows 41-48. Wind N 10-20 MPH with higher gusts likely.

MONDAY: Sun and passing clouds. Highs 52-59. Wind N 10-20 MPH.

DAYS 6-10 (OCTOBER 24-28)

October 24 may dawn with widespread frost and the day will be fair, chilly, and tranquil under high pressure. The high shifts eastward with fair, milder weather midweek. Next trough and frontal system should be less potent and quicker-moving with a briefer shower threat sometime between October 26 and early October 28 – more precise timing to be determined.

DAYS 11-15 (OCTOBER 29 – NOVEMBER 2)

Dry weather, below normal temps early in the period, then fair and milder as high pressure dominates, then another trough may bring unsettled weather late in the period.

DAYS 1-5 (OCTOBER 18-22)

The combination of low level moisture, cool air aloft, and one more disturbance sliding through from the southwest at mid levels will create a fair amount of cloud cover for the region today, but the rain shower threat should be confined to areas south of I-90, favoring the South Coast, and any showers that do occur will be on the lighter side and fairly quick-passing. High pressure builds in making Thursday the mild, dry easy pick of the week. And then things go downhill again quickly on Friday into the start of the weekend. What we will experience will be caused by the beginning of a convergence of 3 systems. The first is low pressure moving up the Atlantic Seaboard with a good slug of moisture. The second is a frontal system moving in from the west. The third is a rapidly-moving low pressure area diving southeast from the Upper Midwest. The upper level features with these initially are a trio of troughs which will eventually consolidate into one, along with one rapidly-strengthening surface low. But this triple merger will not complete itself until the system is already moving away. The weather we see will be the result of this being in progress. First, a few rounds of showers Friday afternoon and night with the first low moving up the coast, which will be weak, but contain a fair amount of moisture. The bulk of the rainfall should occur from late Friday evening to the early hours of Saturday. The frontal boundary will then cause a few additional rounds of showers during the day Saturday, but also allow several rain-free hours. It’s not really until the 3rd puzzle piece rounds the base of the trough and catches up to the system will it become a rapidly strengthening low in the Gulf of Maine, moving quick toward the maritime provinces of Canada. One more lobe of moisture can create another batch of showers Saturday night, and then as this system pulls away Sunday, expect a dry but windy, cool day with a sun/cloud mix.

TODAY: Mostly cloudy to partly sunny. A few passing showers south of I-90. Highs 60-67. Wind SW up to 10 MPH.

TONIGHT: Clearing. Patchy ground fog. Lows 45-52. Wind SW under 10 MPH.

THURSDAY: Mostly sunny. Highs 62-69. Wind SW 5-15 MPH.

THURSDAY NIGHT: Partly cloudy. Patchy fog. Lows 52-59. Wind S up to 10 MPH.

FRIDAY: Mostly cloudy. Isolated to scattered rain showers probable. Highs 61-68. Wind S 5-15 MPH.

FRIDAY NIGHT: Mostly cloudy. Scattered to numerous rain showers likely. Areas of fog. Lows 54-61. Wind SE 5-15 MPH becoming variable under 10 MPH.

SATURDAY: Mostly cloudy. Episodes of rain showers. Highs 58-65. Wind SW up to 10 MPH, shifting to W and increasing to 5-15 MPH late-day.

SATURDAY NIGHT: Mostly cloudy. Additional rain showers possible. Lows 45-52. Wind W 10-20 MPH.

SUNDAY: Sun/cloud mix. Highs 53-60. Wind NW 10-20 MPH, gusts 25-35 MPH.

DAYS 6-10 (OCTOBER 23-27)

Dry weather, below normal temps early next week, breezy at first then less wind. Fair, milder mid to late week but a frontal boundary may approach the region with a rain shower chance by the end of the period.

DAYS 11-15 (OCTOBER 28 – NOVEMBER 1)

Dry weather, below normal temps early in the period, then fair and milder as high pressure dominates, then another trough may bring unsettled weather by the end of the period.

DAYS 1-5 (OCTOBER 17-21)

An upper level low pressure area continues its hold on the region today with a fair amount of clouds and a few rain showers around at times, especially this morning and closer to the eastern coastal areas. This low relinquishes its grip on Wednesday with the shower chance going away, but some clouds still popping up due to the chilly air that remains aloft. High pressure provides us with the “pick of the week” on Thursday, which will be fair and milder. But that weather doesn’t hang around as a southerly air flow on the back side of the high, and yet another approaching trough from the west put us into an unsettled stretch once again later this week. However, I’m not convinced that this stretch of weather will end up all that wet. I do think Friday’s a mild, humid day with lots of clouds and passing rain showers that will be impossible to try timing this far in advance – unsettled, but not “washed out”. As a frontal boundary gets to our east, I’m seeing signs that a few pieces of energy are not really going to fully come together until they are beyond our region, and with this process underway Saturday, I do expect unsettled weather with lots of clouds and a rain chance, but it may be a situation where we see low pressure’s main influence shifting offshore, keeping most of its rain there, and leaving us with a cooler east to northeast wind under a blanket of clouds, but with only limited rainfall, and the potential for long stretches that are rain-free. Still not an ideal set-up, but we may avoid a Saturday soaker just the same. Obviously, monitoring and fine-tuning is needed as we get closer to it.

TODAY: Lots of clouds / intervals of sun. Passing rain showers possible, a few may contain small hail and/or graupel. Highs 54-61. Wind NE-N 5-15 MPH.

TONIGHT: Clouds decrease. Patchy fog. Lows 45-52. Wind N-NW under 10 MPH.

WEDNESDAY: Sun/cloud mix. Highs 57-64. Wind W up to 10 MPH.

WEDNESDAY NIGHT: Clear. Patchy ground fog in lower elevations. Lows 42-49. Wind variable under 10 MPH.

THURSDAY: Mostly sunny. Highs 62-69. Wind SW 5-15 MPH.

THURSDAY NIGHT: Partly cloudy. Patchy fog. Lows 52-59. Wind S up to 10 MPH.

FRIDAY: Mostly cloudy. Isolated to scattered rain showers probable. Highs 60-67. Wind S 5-15 MPH.

FRIDAY NIGHT: Mostly cloudy. Scattered to numerous rain showers likely. Lows 53-60. Wind SE 5-15 MPH.

SATURDAY: Mostly cloudy. Chance of rain. Highs 55-62. Wind E-NE 5-15 MPH.

DAYS 6-10 (OCTOBER 22-26)

Low pressure organizes and strengthens but will be pulling away from our region into eastern Canada with drier, breezy, cool weather October 22 to finish the weekend, then fair and breezy weather lingering into October 23. High pressure builds in with fair and more tranquil weather thereafter.

DAYS 11-15 (OCTOBER 27-31)

Next trough looks less potent bringing a minor rain shower chance early in the period, followed by high pressure and dry weather again but somewhat variable temperatures as we head down the home stretch of the month.