7:30AM

DAYS 1-5…
The next 3 days will have a Summer feel. Small bubbles of high pressure will bring fair weather Wednesday and Friday. A minor interruption comes Thursday as a cold front swings through. A couple things about this front: 1) It will be fast-moving and moisture-starved, and this timing will spare much of the region from showers and t-storms, though areas mainly south and southeast of Boston will run the risk of some activity. 2) The air behind the front won’t really be any cooler than what is ahead of it. The front will be more defined by a spike of humidity just ahead of it and some drying of the air behind it. We’ll have to wait for a stronger cold front to bring temperatures down a notch, and that will take place on the weekend. My early feeling is that a cold front will charge across southeastern New England during the first half of Saturday when there will be a shower and thunderstorm threat, after which the air will dry out during the second half of Saturday and set the region up for wonderful weather for Sunday, which is also Flag Day.
TODAY: Mostly sunny. Highs 70s South Coast, 80s elsewhere. Wind SW 5-15 MPH.
TONIGHT: Mostly clear to partly cloudy. Lows upper 50s to middle 60s. Wind SW 5-15 MPH.
THURSDAY: Partly to mostly sunny. Isolated showers and thunderstorms possible late morning through early afternoon south of the Mass Pike. Highs upper 70s South Coast, 80s elsewhere. Wind SW to W 10-20 MPH.
FRIDAY: Sunny morning. Partly cloudy afternoon. Lows 58-65. Highs 78-85.
SATURDAY: Mostly cloudy with showers morning. Partly cloudy afternoon. Lows 60-67. Highs 75-82.
SUNDAY: Mostly sunny. Lows in the 50s. Highs in the 70s.

DAYS 6-10 (JUNE 15-19)…
A few shower and thunderstorm threats as disturbances traverse the jet stream over the top of a ridge of high pressure centered in the east central US. Temperatures near to above normal. Rainfall near to below normal.

DAYS 11-15 (JUNE 20-24)…
Similar pattern remains locked in for this period as well. Temperatures near to above normal. Rainfall below normal.

7:39AM

DAYS 1-5…
Cold front tracks slowly eastward across southern New England today bringing lots of clouds with a shower and thunderstorm threat. Though a few strong to severe storms are possible, I think severe weather will be limited. A few areas will see downpours, but we will not experience a widespread beneficial rain. High pressure brings fair weather Wednesday. A cold front brings a shower and thunderstorm threat Thursday along with a brief shot of heat and humidity. Warm, dry weather will return Friday with another high pressure area. But weather systems will be moving right along and the next one will bring wet weather to start the weekend, but should not be around long.
TODAY: Mostly cloudy. Isolated showers and thunderstorms at any time, then a broken line of showers and storms possible from west to east late afternoon or evening. Highs in the 70s, cooler some south-facing coastal areas. Wind S to SW 10-20 MPH and gusty.
TONIGHT: Mostly cloudy evening with showers and thunderstorms diminishing west to east. Partly cloudy overnight. Lows 55-62.
WEDNESDAY: Mostly sunny. Highs 70s south-facing coastal areas, 80-85 elsewhere. Wind variable to SW 5-15 MPH.
THURSDAY: Partly cloudy. Chance of showers and thunderstorms. Lows 58-65. Highs 70-75 South Coast ranging up to 80-85 interior.
FRIDAY: Partly cloudy. Lows in the 60s. Highs 70s South Coast, 80s interior.
SATURDAY: Mostly cloudy with showers morning. Partly sunny afternoon. Lows in the 60s. Highs in the 70s.

DAYS 6-10 (JUNE 14-18)…
Similar pattern continues with a shower and thunderstorm threat around June 15 and June 17. Temperatures near to above normal. Rainfall near to below normal.

DAYS 11-15 (JUNE 19-23)…
High pressure ridge attempts to become more established in the eastern US with above normal temperatures and below normal rainfall, but still some risk of showers and storms from passing disturbances in a nearby jet stream.

3:39AM

DAYS 1-5…
Low pressure tracks eastward, passing north of southern New England through Tuesday. Its accompanying warm front and cold front will bring varying amounts cloudiness and a shower and thunderstorm threat at times, especially Tuesday. High pressure brings fair weather Wednesday before the next frontal system brings a chance of a few showers and storms again Thursday. High pressure returns Friday with fair and warm weather.
TODAY: Partly sunny to mostly cloudy with a slight risk of a passing shower. Highs 65-70 coast, 70-75 interior occurring late in the day. Wind SE to S 5-15 MPH with higher gusts, shifting to SW late.
TONIGHT: Mostly cloudy. Slight chance of passing showers and thunderstorms. Lows 60-65. Wind SW 10-20 MPH.
TUESDAY: Variably cloudy. Showers and a chance of thunderstorms early through mid morning west to east and another chance of a few showers and possible thunderstorms late day or evening. Highs in the 70s, cooler some south-facing coastal areas. Wind S to SW 10-20 MPH and gusty.
WEDNESDAY: Mostly sunny. Lows 55-62. Highs 70 coastal areas to 80 interior.
THURSDAY: Partly cloudy. Chance of showers and thunderstorms. Lows 58-65. Highs 70-75 South Coast ranging up to 80-85 interior.
FRIDAY: Partly cloudy. Lows in the 60s. Highs 70s South Coast, 80s interior.

DAYS 6-10 (JUNE 13-17)…
A shower or thunderstorm possible about every other day with disturbances moving through an active jet stream. Temperatures near to above normal, again frequently cooler in coastal areas by day. Rainfall near to below normal.

DAYS 11-15 (JUNE 18-22)…
General pattern will feature a high pressure ridge in the east central US being held at bay somewhat from moving into the Northeast due to a somewhat persistent upper level low pressure area in eastern Canada. This will keep New England near a boundary and result in a few shower and thunderstorm chances and air mass changes during this period. Despite this rainfall will likely be near to below normal for the region as a whole with only isolated locations possibly seeing heavier amounts. Slight chance that the eastern Canadian low lifts out enough to allow a shot of hotter air into New England around June 21-22.

10:42AM

DAYS 1-5…
TODAY: Sunshine filtered at times by variable high clouds. Highs in the 60s coast, 70-75 well inland. Wind light variable with developing sea breezes.
TONIGHT: Increasing clouds. Lows in the 50s. Wind light SE.
MONDAY: Mostly cloudy with passing showers and a slight risk of a thunderstorm through mid afternoon then becoming partly cloudy late. Highs 65-70 coast, 70-75 interior occurring late in the day. Wind SE 5-15 MPH shifting to SW late.
TUESDAY: Variably cloudy. Showers and a chance of thunderstorms early through mid morning west to east and another chance of a few showers and possible thunderstorms late day or evening. Lows 58-65. Highs in the 70s, cooler some south-facing coastal areas.
WEDNESDAY: Mostly sunny. Lows 55-62. Highs 70 coastal areas to 80 interior.
THURSDAY: Partly cloudy. Lows 58-65. Highs 70-75 South Coast ranging up to 80-85 interior.

DAYS 6-10 (JUNE 12-16)…
June 12-13 expected to be mainly rain-free and quite warm but cannot rule out a shower or thunderstorm threat by later June 13. Slightly better chance of showers and storms around June 14-16 with temperatures near to above normal, but do not look for a widespread beneficial rain. Cool ocean water will continue to keep coastal areas often cooler than inland areas each day.

DAYS 11-15 (JUNE 18-22)…
General pattern will feature a high pressure ridge in the east central US being held at bay somewhat from moving into the Northeast due to a somewhat persistent upper level low pressure area in eastern Canada. This will keep New England near a boundary and result in a few shower and thunderstorm chances and air mass changes during this period. Despite this rainfall will likely be near to below normal for the region as a whole with only isolated locations possibly seeing heavier amounts. Slight chance that the eastern Canadian low lifts out enough to allow a shot of hotter air into New England around June 21-22.

11:11AM

DAYS 1-5…
THIS AFTERNOON: Increasing sun. Highs in the 60s coast, 70-75 well inland. Wind N to NE increasing to 10-20 MPH, higher gusts possible.
TONIGHT: Clear. Lows 40-45 interior valleys to around 50 coast. Wind light NE to N.
SUNDAY: Sunshine filtered at times but variable high clouds. Highs in the 60s coast, 70-75 well inland. Wind light variable with developing sea breezes.
MONDAY: Mostly cloudy with passing showers and a slight risk of a thunderstorm through mid afternoon then becoming partly cloudy late. Lows in the 50s. Highs 65-70 coast, 70-75 interior occurring late.
TUESDAY: Partly sunny. Chance of showers/thunderstorms. Lows 55-62. Highs in the 70s.
WEDNESDAY: Mostly sunny. Lows 55-62. Highs 70 coastal areas to 80 interior.

DAYS 6-10 (JUNE 11-15)…
Weak ridge provides fair and warm weather early in the period. Ridge tries to hold while weak trough tries to press in from the Great Lakes mid to late period. Shower and thunderstorm chances increase only slightly June 13-15 but widespread rain is not likely. Temperatures come down slightly to around normal during this time. Coastal locations will often be coolest during the daylight hours.

DAYS 11-15 (JUNE 17-21)…
Overall weather systems remain fairly weak with ridge near the East Coast and a broad west southwesterly flow from the middle of the country to the Great Lakes sending only weak fronts in the direction of the northeastern US. This pattern is one that features near to above normal temperatures and near to slightly below normal rainfall. Coastal areas will still be prone to sea breezes and cooler conditions due to the still-cool water temperatures.
Another passing low pressure trough brings some unsettled weather with episodes of showers and thunderstorms early in the period, then high pressure ridge returns with drier, warmer weather.

7:23AM

SUMMARY…
A weak disturbance will toss some clouds into southeastern New England from the south today into tonight, while a cold front approaches from the northwest by tonight and then passes through the region first thing Saturday with cloudiness dominated by only limited rain chances. High pressure builds into the region later Saturday through Sunday, moving offshore later Sunday. A warm front will pass through early Monday with a moderation in temperatures, followed by a cold front Tuesday with a shower and thunderstorm threat.

DAYS 1-5…
TODAY: Partly to mostly cloudy. Highs in the 60s, coolest coast. Wind light SE.
TONIGHT: Mostly cloudy. Slight chance of showers South Coast early and northwest of Boston late. Lows in the 50s. Wind light variable.
SATURDAY: Clearing northwest to southeast. Highs in the 60s coast, 70-75 interior. Wind N 5-15 MPH gusting over 20 MPH.
SUNDAY: Partly cloudy. Lows in the 50s. Highs in the 70s, cooler coast.
MONDAY: Variably cloudy. Risk of a shower. Lows in the 50s. Highs 65-75, coolest coastal areas.
TUESDAY: Partly sunny. Chance of showers/thunderstorms. Lows 55-65. Highs in the 70s.

DAYS 6-10 (JUNE 10-14)…
Trough exits early in the period, ridge follows, but weather systems will be fairly weak. Look for seasonably cool/dry air to start, then a warm-up to follow. Limited rain chances.

DAYS 11-15 (JUNE 15-19)…
Another passing low pressure trough brings some unsettled weather with episodes of showers and thunderstorms early in the period, then high pressure ridge returns with drier, warmer weather.

5:01PM

SUMMARY…
No major changes today – just minor timing tweaks. Still looking at weak high pressure sinking southward through Thursday and moving off into the Atlantic, then a minor convergence of a disturbance from the south and a cold front from the northwest Friday and Friday night. Any rain from these features will be limited to a few showers. Fair weather returns for the weekend but only with weak high pressure again in control, so do not look for 100% sunshine and any big warm ups, only a modest temperature moderation. A low pressure trough will move in from the west early next week and a weak surface low associated with it, again preventing lots of sun and any building heat.

DAYS 1-5…
TONIGHT… Partly cloudy to mostly clear. Patchy fog possible interior valleys. Lows 38-43 interior valleys 44-49 elsewhere. Wind light variable.
THURSDAY…Clouds give way to sun. Highs from near 60 coastal areas to near 70 interior. Wind light SE.
THURSDAY NIGHT…Increasing clouds. Lows in the 50s.
FRIDAY: Mostly cloudy. Slight chance of showers. Highs in the 60s. Wind variable up to 10 MPH.
SATURDAY: Partly sunny. Lows in the 50s. Highs in the 70s, cooler coast.
SUNDAY: Partly cloudy. Lows in the 50s. Highs in the 70s, cooler coast.
MONDAY: Variably cloudy. Risk of a shower. Lows in the 50s. Highs 65-75, coolest coastal areas.

DAYS 6-10 (JUNE 9-13)…
A trough swings through the Northeast early in the period with humidity and a shower/t-storm risk followed by drier and cooler air, then a quick switch to warm/humid weather around June 12-13.

DAYS 11-15 (JUNE 14-18)…
Another passing low pressure trough brings some unsettled weather with episodes of showers and thunderstorms early to mid period, then high pressure ridge hits the East Coast and turns on some Summer heat late in the period.

8:32PM

SUMMARY…
The June chill continued during Tuesday, with Boston failing to reach 50 for the second straight day, and also setting the second consecutive record for the lowest high temperature for the date (June 1 & 2). Improvement is coming, and this will take place as high pressure pushes to the south and dries the air out Wednesday. It will still be on the cool side, though we’ll lose some of the chill. Thursday still looks like a fairly nice day as well – a little milder still, though sun may fight with some advancing clouds from a disturbance to the south. You may recall in earlier posts I was not confident of the late week and weekend period. One thing that will not be taking place is a warm-up back to the Summer feel of recent days in the short to medium term, as the pattern will be on the cooler side. It does not look as wet though, and we’ll be slipping back to a continuation of the overall dry regime, despite the moderate to heavy rain totals of the last few days. There will be some risk of showers later Friday from the combination of a disturbance from the south and a cold front from the northwest. Weak high pressure should be in control for much of the weekend, limiting rain chances, but not in any position to allow it to warm up significantly.

DAYS 1-5 (THROUGH JUNE 7)…
TUESDAY EVENING: Overcast, areas of drizzle/fog. Temperatures 45-50. Wind light NE.
TUESDAY LATE NIGHT: Clouds break, drizzle/fog departs. Lows 43-48. Wind light N.
WEDNESDAY: Partial sun morning. Abundant sun afternoon. Highs 55-60 coast, 60s interior. Wind light N to NE 5-15 mph.
WEDNESDAY NIGHT: Clear. Lows 38-43 interior valleys 44-49 elsewhere. Wind light variable.
THURSDAY: Sunny morning. Partly sunny afternoon. Highs 60-65 coast, 65-70 interior. Wind light SE.
FRIDAY: Mostly cloudy. Slight chance of showers. Lows in the 50s. Highs in the 60s.
SATURDAY: Partly sunny. Lows in the 50s. Highs in the 70s, cooler coast.
SUNDAY: Partly cloudy. Lows in the 50s. Highs in the 70s, cooler coast.

DAYS 6-10 (JUNE 8-12)…
A weak trough over the Northeast will result in temperatures near to below normal and a few shower opportunities in the June 8-11 period, but by June 12 we may see a quick building of high pressure offshore and a quick turn to Summer warmth.

DAYS 11-15 (JUNE 13-17)…
High pressure ridge brings warm and fair weather early in the period, then a weak trough trying to push in from the Great Lakes region brings showers and thunderstorms and more seasonable temperatures thereafter.

8:23PM

INTRODUCTION…
This is the first post under the new basic format I will follow. There will be daily (or almost daily) posts with a similar title such as the one above. There will be other posts that contain other related topics as well, with their own titles as I have always done. And of course, comments are welcomed. Remember to follow the guidelines and post responsibly!

SUMMARY…
The chilly and damp stretch of weather that arrived Sunday continued today and will last well into Tuesday. High pressure finally pushes it all to the south and introduces drier but still somewhat cool weather by Wednesday with a slight moderation Thursday. I’m still expecting high pressure to sink to the south later in this week with a slight warm-up, but we’ll have to keep an eye on a couple disturbances which may pass closer to or through the region and bring the chance of showers.

DAYS 1-5…
TONIGHT: Overcast with areas of fog and drizzle. Periods of rain with occasional downpours. Local flash flooding possible. Lows 45-53. Wind NE 5-15 MPH, higher gusts.
TUESDAY: Overcast with areas of fog and drizzle. Periods of rain, but additional areas of heavy rain especially morning. Highs 48-57. Wind NE 5-15 MPH, higher gusts.
TUESDAY NIGHT: Clouds linger. Lows 45-53. Wind N 5-15 MPH.
WEDNESDAY: Partly to mostly sunny. Highs in the 60s. Wind variable 5-15 MPH with sea breezes.
WEDNESDAY NIGHT: Mostly clear. Lows in the 50s, some 40s valleys. Light wind.
THURSDAY: Clouds return. Highs around 70. Wind light SE.
THURSDAY NIGHT: Mostly cloudy. Lows around 60. Wind light SE.
FRIDAY: Partly sunny. Chance of showers. Highs 60s coast, 70s interior.
FRIDAY NIGHT: Mostly cloudy. Chance of showers. Lows around 60.
SATURDAY: Partly sunny. Chance of showers early. Highs 65-70 South Coast, 70s to 80 elsewhere.

DAYS 6-10…
High pressure ridging will be well east of the East Coast and a weak mean trough will be in the Great Lakes and Northeast. This will prevent it from turning hot again for a while. Weak weather systems should provide some humidity and shower risks, but it does not look like a return to anything like the wet spell that started the month off. Temperatures and precipitation should average around normal.

DAYS 11-15…
A slight retrogression, or “backing up” of the pattern is expected, putting high pressure off the East Coast, but this will fight a northwest to southeast jet stream and occasional embedded disturbances. A couple renegade warm days may take place but no prolonged heat is in sight. Temperatures will again average near normal with precipitation near to below normal.

11:09PM

REMINDER…
Adjusted format begins with a late Monday post. As always, comments and suggestions are welcomed!

SUMMARY…
A sharp cold front dropped from north to south through southern New England during Sunday. Many places saw temperatures fall 10 to 20 degrees in just an hour or two, and many areas sat at 20 to 30 degrees cooler by late Sunday afternoon than just 24 hours prior. Along with this came bands of showers and thunderstorms, some with heavy rain leading to areas of flooding. The worst of this has been tapering off during Sunday evening, but the frontal boundary sitting just to the south with waves of low pressure along it, and high pressure to the north, will combine to create damp and very cool conditions well into Tuesday with periods of rain and drizzle. By mid week, high pressure will build down from the north, dry it out but still keep it on the cool side. By late week, high pressure will sink to the south allowing for a warm-up, but we’ll have to watch another high pressure area that may build to the north and try to push another cool-down this way. There is some uncertainty regarding the weekend due to this, and the possibility a disturbance will also try to ride through the Northeast at some point despite the high pressure battle ongoing. The result here, a lower than average confidence forecast for Friday-Sunday.

SOUTHEASTERN NEW ENGLAND FORECAST…
OVERNIGHT: Overcast. Periods of rain, drizzle, and fog. Lows 45-53. Wind NE 5-15 MPH, higher gusts.
MONDAY: Overcast. Periods of rain, drizzle, and fog. Highs 49-58. Wind NE 10-20 MPH, higher gusts.
MONDAY NIGHT: Overcast. Periods of rain, drizzle, and fog. Lows 45-53. Wind NE 5-15 MPH, higher gusts.
TUESDAY: Cloudy. Periods of rain, drizzle, and fog, tapering off with time. Highs 50-59. Wind NE 10-20 MPH and gusts.
WEDNESDAY: Mostly sunny. Lows 45-50 interior, 50-55 coast. Highs 60-65 coast, 65-70 interior.
THURSDAY: Mostly sunny. Lows 50-55. Highs 65-70 coast, 70-75 interior.
FRIDAY: Partly cloudy. Lows in the 50s. Highs 65-70 coast, 70s interior.
SATURDAY: Partly sunny. Lows 55-60. Highs 70s coast, 80-85 interior.
SUNDAY: Partly sunny. Lows 60-65. Highs in the 70s, coolest coastal areas.

5:25PM

COMMENTARY/REMINDER…
Hope everybody is having a good weekend! This is a reminder of a format change coming on Monday. I will still issue The Week Ahead post later Sunday with a 7-day forecast, but the posts starting Monday will have the 1-5, 6-10, 11-15 breakdown, as described recently. What follows in this post is a quick update, reflecting a slight change in thinking for early in the week.

SUMMARY…
After a cooler interlude on Friday, the feel of Summer returned on Saturday as the easterly flow was replaced by a southwesterly one. But now another change is coming, and this one will hold some benefit in the form of rain that is badly needed in southern New England. The change will be brought about by a cold front sinking down from the north on Sunday, triggering showers and possible thunderstorms. The front will then hang up and allow disturbances to ride along it, keeping occasional wet weather going Monday and Tuesday. While this is ongoing, an already cool air mass will be made cooler and more damp by an air flow coming from the Canadian Maritmies via the Gulf of Maine. The result will be an April feel to the first couple days of June. It remains to be seen how much rain will take place during the coming 3-day unsettled stretch. There is some chance that the axis of heaviest rain may set up north of the region, leaving southern New England out of getting the most benefit. This will be fine-tuned in future updates. By the middle of next week, high pressure will sink southward and return dry weather to the region. By later in the week, a return southerly flow of warmer air will get underway.

SOUTHEASTERN NEW ENGLAND FORECAST…
TONIGHT: Partly cloudy evening. Mostly cloudy with patchy fog and a slight chance of showers late. Lows in the 60s. Wind SW 10-20 MPH with higher gusts.
SUNDAY: Mostly cloudy. Showers developing and may become more widespread. Chance of thunderstorms. Temperatures steady in 60s South Coast, falling late day. Highs in the 70s elsewhere but falling through the 60s during the afternoon. Wind SW 10-20 MPH with higher gusts, shifting to N from north to south during the day.
SUNDAY NIGHT: Cloudy. Showers likely. Patchy fog and drizzle. Lows in the 50s. Wind N to NE 5-15 MPH.
MONDAY: Cloudy. Episodes of showers. Areas of fog and drizzle. Highs 55-60 coast, 60s interior areas. Wind NE 10-20 MPH.
TUESDAY: Mostly cloudy. Additional showers and possible drizzle. Lows 50-55. Highs 55-60 coast, 60s interior.
WEDNESDAY: Partly cloudy to mostly sunny. Lows in the 50s. Highs in the 60s except 70-75 well inland.
THURSDAY: Mostly sunny. Lows in 50s. Highs 65-70 coast, 70s interior.
FRIDAY: Mostly sunny. Lows 55-60. Highs around 70 coast to around 80 interior.
SATURDAY: Partly sunny. Lows around 60. Highs 70s coast, 80-85 interior.

11:25PM

SUMMARY…
An area of high pressure will bring wonderful late Spring weather to southern New England on Friday. It will be less warm than the Summery 3 days preceding it, and also less humid. The coastal areas will be cooler than the interior due to a sea breeze. By Friday night, some low clouds may try to come onshore from the east, and more will appear from the south during the night as high pressure slips to the southeast and a southerly flow develops. This flow will turn more southwesterly on Saturday, allowing the feel of Summer to return. This will set up the potential for some beneficial rain as a slow-moving cold front arrives Sunday. It remains to be seen how much rain will result, but it is the best shot in a while at some relief from the developing drought. This does not indicate a switch to a wet pattern, however, as a drier regime will resume next week. The early part of the week will be on the cool side, however, as high pressure parks itself north of the region and provides a regional onshore flow. By the middle of next week, high pressure will sink to the southeast and allow a warm-up to get underway.

SOUTHEASTERN NEW ENGLAND FORECAST…
OVERNIGHT: Partly cloudy to mostly clear. Lows 56-64. Wind NW up to 10 MPH.
FRIDAY: Partly sunny. Highs 65-70 immediate coast, 70s elsewhere. Wind N up to 10 MPH but sea breezes developing.
FRIDAY NIGHT: Partly to mostly cloudy with clouds most dominant in coastal areas. Lows 55-60. Wind light SE to S.
SATURDAY: Partly to mostly sunny but low clouds may be stubborn near the South Coast. More humid. Highs near 70 immediate South Coast up to the 80s most interior areas. Wind S to SW increasing to 10-20 MPH with higher gusts.
SATURDAY NIGHT: Partly to mostly cloudy. Humid. Lows in the 60s. Wind SW 5-15 MPH.
SUNDAY: Cloudy. Showers likely. Chance of thunderstorms. Humid. Highs 65-70 South Coast, 70-75 elsewhere, but turning cooler all areas during the afternoon. Wind variable to N 5-15 MPH.
MONDAY: Cloudy. Lows 55-60. Highs in the 60s, coolest coast.
TUESDAY: Clearing. Lows 55-60. Highs in the 60s, coolest coast.
WEDNESDAY: Sunny. Lows 55-60. Highs 60s coast to 70s inland.
THURSDAY: Sunny. Lows 55-60. Highs 70s coast to 80-85 inland.

3:10AM

SUMMARY…
Again no major changes. Things are doing as expected with a warm and humid air mass in place now, to be cut into by a cold front later today, bringing the risk of some showers and thunderstorms from northwest to southeast. No severe weather is expected, but a stronger storm cannot be ruled out, especially away from the coast. High pressure brings fair weather and a little drier air for Friday. The feel of Summer returns Saturday as this high will be offshore. Some low cloudiness may reach eastern coastal areas during Friday due to some light easterly flow, and additional low cloudiness may dominate the South Coast Saturday as the wind turns more to the south with more humidity. Another cold front will move in from the west late Saturday and take most of Sunday to push through. This brings more unsettled weather and some chance at least areas of beneficial rain. High pressure presses down from the north by Monday but cloudiness may linger due to onshore flow, breaking up somewhat Tuesday as high pressure moves closer. This high will also bring cooler air as June begins. A warm-up will commence by the middle of next week as the high sinks further to the south.

SOUTHEASTERN NEW ENGLAND FORECAST…
TODAY: Mostly cloudy to partly sunny. Chance of showers and thunderstorms mid to late afternoon well north and west of Boston, late afternoon and evening close to Boston and to the southeast. Humid. Highs 65-70 South Coast, 70s to lower 80s elsewhere. Wind SW 10-20 MPH with higher gusts.
TONIGHT: Decreasing clouds. Lows 55-60. Wind W 5-15 MPH.
FRIDAY: Mostly to partly sunny. Highs in the 70s, upper 60s coastal areas. Wind variable to E 5-15 MPH.
SATURDAY: Partly cloudy. Lows 60-65. Highs in the 80s, cooler South Coast.
SUNDAY: Mostly cloudy. Showers and thunderstorms likely. Lows 60-65. Highs 65-70 coast, 70-75 inland.
MONDAY: Cloudy. Chance of drizzle and showers. Lows 55-60. Highs 60-65.
TUESDAY: Partly sunny. Lows 55-60. Highs 65-70.
WEDNESDAY: Partly cloudy. Lows 55-60. Highs 65-70 South Coast, 70s elsewhere.

7:28AM

SUMMARY…
The feel of Summer in the last days of Meteorological Spring, then the feel of Spring in the first days of Meteorological Summer. Typical New England. No major changes at this time from what was discussed in the last entry. The Summer preview got established on Tuesday and will continue for the rest of this week, though there will be a few changes during this time with a weak cold front bringing some showers and thunderstorms into the region mainly well north and west of Boston today and into most of the region Thursday, though this does not look like it will become a widespread beneficial rain. We’ll also see a brief cool down and dry push of air Friday before the feel of Summer returns Saturday. By Sunday another cold front will arrive and this one may produce more widespread showers and thunderstorms. As June begins, the first couple days of it (Monday and Tuesday next week) look much cooler.

SOUTHEASTERN NEW ENGLAND FORECAST…
TODAY: Sun/cloud mix. Slight chance of a shower or thunderstorm late-day north central MA and southwestern NH. Highs 65-70 South Coast and 70s just inland from there, 80s elsewhere, may reach 90 in a few locations. More humid. Wind SW 10-20 MPH with higher gusts.
TONIGHT: Partly to mostly cloudy. Humid. Lows in the 60s. Wind SW 5-15 MPH.
THURSDAY: Mostly cloudy to partly sunny. Chance of showers and thunderstorms mid to late afternoon well north and west of Boston, late afternoon and evening close to Boston and to the southeast. Humid. Highs 65-70 South Coast, 70s to lower 80s elsewhere. Wind SW 10-20 MPH with higher gusts.
FRIDAY: Mostly sunny. Lows 55-60. Highs in the 70s.
SATURDAY: Partly cloudy. Lows 60-65. Highs in the 80s, cooler South Coast.
SUNDAY: Mostly cloudy. Showers and thunderstorms likely. Lows 60-65. Highs 65-70 coast, 70-75 inland.
MONDAY: Cloudy. Chance of drizzle and showers. Lows 55-60. Highs 60-65.
TUESDAY: Partly sunny. Lows 55-60. Highs 65-70.

9:30PM

NOTE…
If you tend to just read the most recent post, be aware that there were two posts made Monday evening. Don’t miss the post containing the outlook for Summer!

ANNOUNCEMENT…
Starting on Monday June 1, I’m going to introduce a slight change to the blog format. There will be a daily (or almost daily) forecast post which will have a discussion about current and upcoming weather, a detailed forecast for days 1 through 5, an outlook with less detail but an overall idea of what to expect during days 6 through 10, and a very brief look ahead about what the expected pattern may result in for days 11 through 15. This is a format I am familiar with and worked with for many years, and I’m going to give it a try here. So these forecasts will be delivered in 3 groups of 5 days, with obviously the most focus being on the first 5 days. This format change will be seen only in how the text is arranged. No other changes are coming in the near-term.

SUMMARY…
A warm front is pushing across southern New England and will introduce a Summer preview for the next few days with a warm and more humid southwesterly flow. A narrow area of unstable air will work into southwestern New England early Tuesday and may reach areas further east later in the day. This will result in some spotty pop up showers and possible thunderstorms. Widespread activity is not likely. This area of instability will shift a little further northwest by Wednesday, resulting in the greatest chance of showers and thunderstorms being over western and northern New England, leaving southeastern areas with much less of a chance to see anything. By Thursday, a weak cold front will try to push into the region, increasing the risk for showers and thunderstorms, though I still don’t feel that widespread activity is likely. A break in the action is expected Friday as narrow high pressure arrives, but this may give way to another front on Saturday with a return of a shower and thunderstorm threat. A bit more of a battle may set up Sunday and Monday as May ends and June begins with high pressure from the north trying to battle more humid air to the south. It remains to be seen how this plays out exactly, other than increasing the chance for unsettled weather which will be reflected in a lower confidence forecast below.

SOUTHEASTERN NEW ENGLAND FORECAST…
TONIGHT: Mostly cloudy. A few areas of very light to light rain mainly before midnight. Lows in the middle 50s to lower 60s. Wind SW 5-15 MPH.
TUESDAY: Variably cloudy. Isolated showers and thunderstorms in the afternoon and early evening, especially northern MA and southern NH. Highs upper 60s to middle 70s South Coast, upper 70s to middle 80s elsewhere. More humid. Wind SW 10-20 MPH.
TUESDAY NIGHT: Partly cloudy. Patchy fog late. Humid. Lows in the 60s. Wind SW 5-15 MPH.
WEDNESDAY: Partly cloudy to mostly sunny. Isolated showers or thunderstorms possible north central MA and southwestern NH late. Highs in the 70s South Coast, 80s to near 90 elsewhere. Wind SW 10-20 MPH.
THURSDAY: Mostly cloudy. Chance of showers and thunderstorms. Lows in the 60s. Highs in the 70s.
FRIDAY: Partly sunny. Lows upper 50s to lower 60s. Highs upper 60s to middle 70s, coolest South Coast.
SATURDAY: Variably cloudy. Chance of showers and thunderstorms. Lows in the 60s. Highs in the 70s.
SUNDAY: Mostly cloudy. Showers likely. Lows 55-60. Highs in the 60s.
MONDAY: Mostly cloudy. Chance of showers. Lows in the 50s. Highs in the 60s.