Wednesday March 31 2021 Forecast (7:21AM)

DAYS 1-5 (MARCH 31 -APRIL 4)

The last day of March is likely to be warmer than the first 4 days of April. That’s spring in New England – you know how it goes. We’ll be in a mild southerly air flow ahead of an approaching cold front today and we’ll see a lot more cloudiness than we saw the last couple days, but other than the cooling influence a southerly wind has along the South Coast, many areas will push or exceed 60 today. We’ll start to see some isolated to scattered rain shower activity moving into the region, mostly west of Boston, during this afternoon, and as low pressure coming out of the southern US links up with the front and moves up along it, the shower activity will become numerous to widespread during tonight and into Thursday morning. Now it’s pretty apparent that the end of the precipitation will come before the arrival of air cold enough to flip it to snow in the WHW forecast area, with rain showers lingering in the region at least through midday and maybe one more surge sometime in the early or mid afternoon before we say bye to that. As the cold air comes in at night, a brief snow flurry may occur mainly north of Boston, otherwise expect dry and colder weather Thursday night and Friday, and while we see some sun for a time on Friday, very cold air aloft will likely allow for diurnal cloud development filling the sky in again, so sun may become quite limited that day. An area of high pressure slides just to the south of New England Saturday, which will be a milder day with more sun, but by late-day or evening more clouds will arrive ahead of another disturbance from the northwest, and a cold front associated with this disturbance will bring cooler weather back to the region for Sunday, which right now looks unsettled to start with a few showers of rain and even mix/snow, though insignificant, and then mainly dry weather.

TODAY: Variably cloudy – most sun this morning and lingering longest Cape Cod. Isolated rain showers mainly well west and northwest of Boston this afternoon. Highs 60-67 except 52-59 South Coast. Wind S 10-20 MPH with higher gusts.

TONIGHT: Mostly cloudy with scattered rain showers in the evening. Cloudy with numerous to widespread rain showers overnight. Lows 49-56. Wind S 10-20 MPH with higher gusts.

THURSDAY: Cloudy with widespread to numerous rain showers morning. Mostly cloudy with scattered rain showers ending southwest to northeast afternoon. Highs 51-58 morning, then falling into the 40s in the afternoon. Wind NW 10-20 MPH with higher gusts.

THURSDAY NIGHT: Mostly cloudy evening with a very light rain or snow shower possible southeastern NH and northeastern MA. Partial clearing overnight. Lows 30-37. Wind NW 10-20 MPH, gusts to 30 MPH.

FRIDAY: Partial sun morning. Mostly cloudy afternoon. Highs 41-48. Wind NW 10-20 MPH, higher gusts especially in the morning.

FRIDAY NIGHT: Gradual clearing. Lows 27-34. Wind W 5-15 MPH.

SATURDAY: Sunny morning. Partly sunny afternoon. Highs 53-60. Wind W 5-15 MPH.

SATURDAY NIGHT: Partly cloudy evening. Mostly cloudy with a passing shower of rain/mix/snow possible overnight. Lows 33-40. Wind NW 5-15 MPH.

SUNDAY: Mostly cloudy with a passing shower of rain/mix/snow possible morning. Partly sunny afternoon. Highs 45-52. Wind NW 10-20 MPH.

DAYS 6-10 (APRIL 5-9)

The large scale pattern will feature a block with a broad low pressure area retrograding through the Canadian Maritimes, keep this area on the cooler side but not too far from normal due to days that are cool but nights that the temperature doesn’t fall too much. At least the early part of the period may feature some unsettled weather do to the position of the aforementioned low pressure area, followed by mostly dry weather.

DAYS 11-15 (APRIL 10-14)

The tendency may be for the block to re-organize itself, with one low pulling away to be replaced by another one, first coming from the west before slowing down. This is not a high confidence outlook and is a mix of guidance and climatology. Not expecting this to turn into a very wet pattern, though it may be unsettled with a lack of temperature extremes.

Tuesday March 30 2021 Forecast (7:33AM)

DAYS 1-5 (MARCH 30 -APRIL 3)

This next-to-last day of March will be a nice one, courtesy an area of high pressure. And even though the final day of the month is going to be cloudier, it will be milder, and really not that bad, as it looks like most of the rainfall from an approaching frontal system / low pressure area will hold off until evening and nighttime. This is the system that raised the question of baseball or no baseball at Fenway on Thursday April 1, and whether or not the rain may end mixed with a bit of wet snow or leave behind a few showers or flurries. Not 100% sure on either of those yet, and the forecast is basically the same as yesterday’s was at this point. It will turn quite cool for the first couple days of April – that much we do know for sure. High pressure moves over or even just south of the region allowing moderation by the start of the weekend.

TODAY: Sunny. Highs 55-62. Wind S 5-15 MPH.

TONIGHT: Partly cloudy. Lows 38-45. Wind S up to 10 MPH.

WEDNESDAY: Variably cloudy. Late-day rain showers possible. Highs 60-67 except 50s South Coast. Wind S 10-20 MPH with higher gusts.

WEDNESDAY NIGHT: Cloudy. Widespread rain showers. Lows 46-53. Wind S 10-20 MPH with higher gusts.

THURSDAY: Mostly cloudy. Rain showers ending during the morning, possibly mixed with snow. Temperatures steady 46-53 early then falling to the upper 30s. Wind shifting to NW 10-20 MPH increasing to 15-25 MPH with higher gusts.

THURSDAY NIGHT: Clearing. Lows 28-35. Wind NW 15-25 MPH and gusty.

FRIDAY: Sun/cloud mix. Highs 40-47. Wind NW 10-20 MPH and gusty.

FRIDAY NIGHT: Clear. Lows 25-32. Wind W under 10 MPH.

SATURDAY: Mostly sunny. Highs 53-60. Wind W 5-15 MPH.

DAYS 6-10 (APRIL 4-8)

Large scale blocking pattern. The overall setup is one that should keep us on the drier side with no major storminess having direct impact on our region. Temperatures are likely to trend cooler during April 4-6 but may briefly moderate around April 7 or 8 depending on what side of a boundary we sit on.

DAYS 11-15 (APRIL 9-13)

Larger scale blocking pattern may keep it on the cooler side of normal but with limited unsettled weather as we may remain in a drier part of the block. Hints that that block may weaken or try to reset later in the period and it may turn more unsettled at that time – but details that far out aren’t going to be known.

Monday March 29 2021 Forecast (7:09AM)

DAYS 1-5 (MARCH 29 -APRIL 2)

Winter’s reminder starts off the new week as we experience strong wind gusts behind departing low pressure, and a chunk of cold air crossing the region. High pressure nudges eastward by Tuesday and helps slacken the wind while moderating the air, so Tuesday will have a bit more feel of spring to it. This high pressure area then crosses the region and positions itself offshore while a frontal boundary approaches from the west Wednesday – a milder but windier day which turns cloudy, and eventually wet as a ribbon of rain moves in from the west, probably late-day or night. As we flip the calendar from March to April, the first question to answer will be timing of rain’s end on Thursday as we’ll probably see a wave of low pressure moving up along a cold front as it passes offshore. I don’t think the timing and arrival of cold air will be such that we flip to snow here before it ends, but that does still remain at least a remote possibility, so we’ll have to watch for that. The Red Sox home opener is scheduled for Thursday, which even if it can be played due to drying weather it will be played with a gusty wind and chilly temperatures – not highly unusual for baseball in early April. High pressure builds into the region from the west by Friday which will be a bright, breezy, and chilly day as another shot of Canadian cold air is delivered, whether you ordered it or not. 😉

TODAY: Sun/cloud mix morning. Sunny afternoon. Highs 45-52. Wind W 15-25 MPH with gusts 30-45 MPH, but 50 MPH or greater in some higher elevations.

TONIGHT: Clear. Lows 26-33. Wind W 10-20 MPH with higher gusts.

TUESDAY: Sunny. Highs 55-62. Wind S 5-15 MPH.

TUESDAY NIGHT: Partly cloudy. Lows 38-45. Wind S up to 10 MPH.

WEDNESDAY: Variably cloudy. Afternoon rain showers possible. Highs 60-67 except 50s South Coast. Wind S 10-20 MPH with higher gusts.

WEDNESDAY NIGHT: Cloudy. Widespread rain showers. Lows 46-53. Wind S 10-20 MPH with higher gusts.

THURSDAY: Mostly cloudy. Rain showers ending during the morning, possibly mixed with snow. Temperatures steady 46-53 early then falling to the upper 30s. Wind shifting to NW 10-20 MPH increasing to 15-25 MPH with higher gusts.

THURSDAY NIGHT: Clearing. Lows 28-35. WInd NW 15-25 MPH and gusty.

FRIDAY: Sun/cloud mix. Highs 40-47. Wind NW 10-20 MPH and gusty.

DAYS 6-10 (APRIL 3-7)

Large scale blocking pattern. The overall setup is one that should keep us on the drier side with no major storminess having direct impact on our region. Temperatures are tricky, leaning toward an April 3-4 weekend warm-up and a cool-down the first part of the following week.

DAYS 11-15 (APRIL 8-12)

Larger scale blocking pattern may keep it on the cooler side of normal but with limited unsettled weather as we may remain in a drier part of the block.

Sunday March 28 2021 Forecast (7:46AM)

DAYS 1-5 (MARCH 28 -APRIL 1)

Hope you enjoyed yesterday. Although it started out with a gusty northwesterly breeze and ended up with a chilly sea breeze for some, by late March standards it was a nice day. Today won’t be quite so nice. It’s already overcast and approaching low pressure from the west will send a slug of rainfall into the region. There’s enough instability with the system that we may even get some thunderstorm activity with the rainfall this evening as an occluded frontal system moves across the region. Although we do need that rain to help alleviate recent dryness and also fire danger which has been spiking on our dry, breezy days. Speaking of dry and windy, that’s the type of weather we get Monday as our rain-producer moves away and pulls a chunk of cold air out of Canada. High pressure moves in with a less windy and milder Tuesday, but March may exit with a bit of a roar as strong cold front approaches from the west Wednesday with windy and showery weather by late-day or nighttime. In the medium range, we’ve been pondering the questions of what will happen when the front crosses the region around April 1. Well, it will bring colder air back to the region – that much we know. It will bring some wet weather to start the new month – that much we’re pretty sure of. Will it move slowly enough that enough moisture will be around for that rain to change to snow? It’s still several days away, so I’m not sure, but I’m leaning away from a “snow” threat there and maybe just some rain showers or snow flurries as the front moves off and cold air arrives. Still time to fine-tune this.

TODAY: Overcast. Areas of fog and drizzle developing during the morning especially near the coast. Rain arriving west to east midday continuing through afternoon. . Highs 46-53. Wind SE to E 5-15 MPH, higher gusts possible.

TONIGHT: Cloudy evening with rain showers likely and possibly a thunderstorm, also areas of fog. Breaking clouds overnight. Lows 36-43. Wind shifting to N and increasing to 10-20 MPH with higher gusts.

MONDAY: Sun/cloud mix. Highs 42-49. Wind NW 15-25 MPH, gusts 30-45 MPH.

MONDAY NIGHT: Clear. Lows 28-35. Wind W 5-15 MPH.

TUESDAY: Sunny. Highs 55-62. Wind S up to 10 MPH.

TUESDAY NIGHT: Partly cloudy. Lows 38-45. Wind S up to 10 MPH.

WEDNESDAY: Variably cloudy. Afternoon rain showers possible. Highs 58-65 except cooler South Coast. Wind SW 10-20 MPH.

WEDNESDAY NIGHT: Cloudy. Rain showers likely. Lows 42-49. Wind S 10-20 MPH shifting to NW.

THURSDAY: Mostly cloudy. Chance of rain and snow showers. Temperatures steady 42-49. Wind NW 15-25 MPH.

DAYS 6-10 (APRIL 2-6)

Large scale blocking pattern. Leaning toward mainly dry but cooler than normal weather with broad low pressure evolving and staying quasi-stationary to the east of the region.

DAYS 11-15 (APRIL 7-11)

Larger scale blocking pattern may keep it on the cooler side of normal but with limited unsettled weather as we may remain in a drier part of the block.

Saturday March 27 2021 Forecast (8:34AM)

DAYS 1-5 (MARCH 27-31)

The home stretch of March 2021 starts with a nice day as high pressure enters the region today. While the center of the high is still to our west we’ll have a gusty breeze this morning, which will settle down as the high moves overhead during the day. Today is definitely the pick of the weekend though for outdoor activity, as advancing low pressure will bring cloudiness back in tonight which thickens up quickly Sunday morning and is followed by rain, which we need to knock down fire danger and chip away from what had been a rebuilding precipitation deficit. Sunday’s rainmaker will exit by early Monday and behind it will be a shot of windy and colder weather. High pressure heads into the region from the west by Tuesday – a nice day, and then gives way to an approaching frontal system from the west Wednesday which will be milder, and may turn showery by day’s end…

TODAY: Mostly sunny. Highs 54-61. Wind NW 10-20 MPH morning, diminishing afternoon..

TONIGHT: Increasing clouds. Lows 36-43 evening, may rise slowly overnight. Wind variable up to 10 MPH becoming SE.

SUNDAY: Cloudy. Patchy fog/drizzle morning. Rain arriving west to east by midday continuing thereafter. Highs 46-53. Wind SE to E 5-15 MPH, higher gusts possible.

SUNDAY NIGHT: Cloudy evening with area of fog/drizzle and a passing shower or possible thunderstorm. Breaking clouds overnight. Lows 36-43. Wind shifting to N and increasing to 10-20 MPH with higher gusts.

MONDAY: Sun/cloud mix. Highs 42-49. Wind NW 15-25 MPH, gusts 30-45 MPH.

MONDAY NIGHT: Clear. Lows 28-35. Wind W 5-15 MPH.

TUESDAY: Sunny. Highs 55-62. Wind S up to 10 MPH.

TUESDAY NIGHT: Partly cloudy. Lows 38-45. Wind S up to 10 MPH.

WEDNESDAY: Partly sunny. Late-day or nighttime rain showers possible. Highs 58-65. Wind SW 10-20 MPH.

DAYS 6-10 (APRIL 1-5)

Cold front moves through April 1 with at least a round of rain showers – will watch for an area of low pressure that may form on the front and give a period of rain and even mix/snow depending on timing of precipitation vs. arrival of cold air. Blocking pattern evolving means we will have to look for our weather not necessarily coming from the west during the days following this, and colder air from Canada may win out. We should have a couple or a few dry days but it may eventually turn unsettled before this period is over.

DAYS 11-15 (APRIL 6-10)

Larger scale blocking pattern may keep it on the cooler side of normal but with limited unsettled weather as we may end up in a drier part of the block.