DAYS 1-5 (JUNE 28 – JULY 2)

A warm front saunters northward across some of but probably not all of the region today, setting up a fairly wide temperature contrast despite a mainly cloudy sky. Most of the rainfall associated with this front will occur early on as a swath of moderate to briefly heavy showers to the north (mainly southern NH / northeastern MA) and a few scattered showers to the south, followed by a generally rain-free day, other than a possible sprinkle. A cold front will sweep through the region tonight with a few additional showers possible. Today will feature a spike of higher humidity that will then back off a bit tomorrow behind the frontal system, although with more sun it will end up a warmer day, even behind the “cold front” (previously discussed this here). High pressure builds in late Sunday then slides offshore Monday, which will be a fair and very warm day with moderate humidity. A cold front approaches and passes through the region Tuesday, with a quick shot of heat, higher humidity, and a chance of showers and thunderstorms. Behind this come an area of high pressure with sunshine and warmth for Wednesday, with lower humidity as well.

TODAY: Mainly cloudy. Showers and a few downpours likely mainly northeastern MA and southern NH until mid morning with scattered showers to the south, then only isolated very light showers thereafter. Highs 68-75 southeastern NH and eastern MA, 75-82 elsewhere. Dew point rises to 65+. Wind E up to 10 MPH southern NH and northeastern MA, SE to S up to 10 MPH elsewhere.

TONIGHT: Mostly cloudy. Showers are most likely overnight from northwest to southeast. Patchy fog. Lows 62-69. Dew point in 60s. Wind S up to 10 MPH.

SUNDAY: Sun/cloud mix. Highs 76-83. Dew point falls to near 60. Wind W up to 10 MPH.

SUNDAY NIGHT: Partly cloudy. Patchy fog. Lows 61-68. Dew point 60+. Wind variable under 10 MPH.

MONDAY: Sun/cloud mix. Highs 76-83 South Coast / Cape Cod, 83-90 elsewhere. Dew point in 60s. Wind S 5-15 MPH.

MONDAY NIGHT: Partly cloudy. Patchy fog. Lows 65-72. Dew point 65+. Wind SW up to 10 MPH.

TUESDAY: Partly sunny. Showers and thunderstorms likely in the afternoon. Highs 85-92 except cooler South Coast / Cape Cod. Dew point 65+. Wind SW 10-20 MPH.

TUESDAY NIGHT: Clearing. Lows 61-68. Dew point falls below 60. Wind NW 5-15 MPH.

WEDNESDAY: Mostly sunny. Highs 80-87. Dew point in 50s. Wind W 5-15 MPH.

DAYS 6-10 (JULY 3-7)

A passing disturbance can trigger a late-day shower or thunderstorm mainly north of Boston July 3 otherwise look fair mainly dry, warm weather. High pressure builds in with fair, warm, dry weather July 4-5. Next front brings a shower or thunderstorm chance at some point July 6 before fair weather returns for July 7.

DAYS 11-15 (JULY 8-12)

West northwest flow, seasonably warm though some temperature variability. A couple fronts can bring brief, passing shower and thunderstorm chances in an overall fairly dry pattern.

DAYS 1-5 (JUNE 27 – JULY 1)

Our cooler interlude continues today as a weak area of high pressure builds from Atlantic Canada southward to the Gulf of Maine. This will eliminate any shower chances, although a lot of cloudiness will still be around. Thinning out of that cloud cover at times can allow for some sunshine, particularly in northeastern MA and southeastern NH, closest to the Gulf of Maine high pressure area. The front that put an end to our heat the other day has been sitting off to our south and is going to start making a return to the north soon. This will impact our weather Saturday, to start the weekend, generating some shower activity in the morning hours, although the most concentrated activity looks like it will occur north of I-90, and should be done by mid to late morning, followed by many rain-free hours with no more than an isolated pop up shower possible in a few locations. Temperatures will display a bit of a contrast on Saturday due to the front’s advance being slowed, with coolest conditions near the NH Seacoast and warmest conditions just away from the South Coast in northeastern CT, northern RI, and adjacent southern MA. I don’t expect abundant sun on Saturday, but there can be some intervals of it. Low pressure passing by to our north will drag a cold front through the region during the late night hours of Saturday and very early hours of Sunday, with a round of showers, but this should be offshore by about sunrise on Sunday, and a small area of high pressure is expected to provide fair weather Sunday and Monday with a warming trend for the last couple days of June.

TODAY: Considerably cloudy. Highs 67-74, coolest coast. Dew point sub-60. Wind E up to 10 MPH.

TONIGHT: Mostly cloudy. Scattered showers especially north of I-90 overnight. Fog patches form. Lows 60-67. Dew point near 60. Wind E to SE under 10 MPH.

SATURDAY: Mostly cloudy. Shower chance is greatest north of I-90 morning, but isolated to scattered showers are possible at any time. Highs 68-75 southeastern NH and eastern MA, 75-82 elsewhere. Dew point 60+. Wind E up to 10 MPH southern NH and northeastern MA, SE to S up to 10 MPH elsewhere.

SATURDAY NIGHT: Mostly cloudy. Showers are most likely overnight from northwest to southeast. Patchy fog. Lows 62-69. Dew point 60+. Wind variable up to 10 MPH.

SUNDAY: Sun/cloud mix. Highs 76-83. Dew point 60+. Wind S up to 10 MPH.

SUNDAY NIGHT: Partly cloudy. Patchy fog. Lows 61-68. Dew point 60+. Wind variable under 10 MPH.

MONDAY: Sun/cloud mix. Highs 76-83 South Coast / Cape Cod, 83-90 elsewhere. Dew point in 60s. Wind S 5-15 MPH.

MONDAY NIGHT: Partly cloudy. Patchy fog. Lows 65-72. Dew point 65+. Wind SW up to 10 MPH.

TUESDAY: Partly sunny. Showers and thunderstorms likely in the afternoon. Highs 85-92 except cooler South Coast / Cape Cod. Dew point 65+. Wind SW 10-20 MPH.

DAYS 6-10 (JULY 2-6)

High pressure provides great summer weather July 2-4, but a passing disturbance to the north may trigger a shower or thunderstorm mainly north and west of Boston at some point July 3. Watching for a disturbance to bring a little unsettled weather at some point over the July 5-6 weekend, but recent guidance trends are for less of an impact and mostly fair weather.

DAYS 11-15 (JULY 7-11)

A couple brief periods of unsettled weather in an otherwise mainly dry and seasonably warm pattern.

DAYS 1-5 (JUNE 26-30)

A cold front moved through the region from north to south late yesterday and is now settling to the south of our area, but not too far away. This front brought a cooler, less humid air mass to our region, but instead of getting a nice clear-out, we’re going to stay under a blanket of clouds, which can thin and break at times, much of the time during the next few days, along with generally below normal temperatures. There will be episodic shower threats, but the majority of the time will be rain-free. High pressure in eastern Canada delivers a broad scale air flow off the Atlantic, keeping it cool, but the source of the air mass was drier, so dew point temps have fallen below 60 and will stay there for a couple days before starting to increase this coming weekend. As far as our wet weather threats: This morning carries one mainly near and south of I-90 with some moderate convective showers. This evening more stratiform light rain patches can drift down from northern and central New England, but these will fight dry air, as will additional attempts through much of Friday. A disturbance passing by aloft will increase the wet weather chance slightly Friday night and early Saturday, but right now it looks like the greater chance for shower activity will be across northern portions of the WHW forecast area (southern NH, far northern MA). Still can’t rule out some isolated to scattered showers to the south, however. Sunday’s weather warms slightly, becomes a little more humid, but carries a minimal chance of a shower, with more sun than the previous few days as well – a hint of summer weather’s return…

TODAY: Mostly cloudy. Scattered showers are most likely morning and midday from I-90 southward. Highs 68-75, coolest coast. Dew point sub-60. Wind E up to 10 MPH.

TONIGHT: Mostly cloudy. Patchy light rain favoring areas north of I-90. Lows 60-67. Dew point sub-60. Wind E under 10 MPH.

FRIDAY: Mostly cloudy. Chance of a shower. Highs 67-74, coolest coast. Dew point sub-60. Wind E up to 10 MPH.

FRIDAY NIGHT: Mostly cloudy. Increased shower chances, favoring areas north of I-90. Fog patches form. Lows 60-67. Dew point near 60. Wind E under 10 MPH.

SATURDAY: Mostly cloudy. Shower chance is greatest north of I-90 morning, but isolated to scattered showers are possible at any time. Highs 70-77. Dew point 60+. Wind E up to 10 MPH.

SATURDAY NIGHT: Variably cloudy. Chance of a shower. Patchy fog. Lows 60-67. Dew point 60+. Wind variable under 10 MPH.

SUNDAY: Partly sunny. Chance of a shower. Highs 76-83. Dew point 60+. Wind variable up to 10 MPH.

SUNDAY NIGHT: Partly cloudy. Patchy fog. Lows 61-68. Dew point 60+. Wind variable under 10 MPH.

MONDAY: Sun/cloud mix. Highs 78-85, coolest South Coast. Dew point in 60s. Wind S 5-15 MPH.

DAYS 6-10 (JULY 1-5)

Briefly hotter July 1 with a PM thunderstorm chance from an approaching cold front. High pressure brings mainly fair and seasonably warm weather July 2-4. Unsettled weather may return at the end of the period (July 5).

DAYS 11-15 (JULY 6-10)

A couple brief periods of unsettled weather in an otherwise mainly dry and seasonably warm pattern.

DAYS 1-5 (JUNE 25-29)

The extreme heat of yesterday will not be repeated today, but don’t let that fool you into thinking we can’t have one more hot day in the stretch. That will be the case because the relief-delivering cold front will take much of the day to traverse the region from north northeast to south southwest – quasi-backdoor style. While some areas reach or exceed 90 again, the record highs of 92 in Worcester, 95 in Hartford, 97 in Boston, and 98 in Providence, all set in 1943, will remain unbroken. A few pop-up showers and thunderstorms can occur today ahead of and along the frontal boundary, but coverage should be fairly low. Any locations that do see them, however, can experience heavy downpours and a pretty solid thunderstorm. The NH Seacoast, southeastern NH, and northeastern MA will be the first to see the temperature rise halted and reversed at some point this afternoon, with that trend then progressing south southwestward with time, so that during the course of this evening everybody is dropping to cooler levels than last night’s low temps. The dew point trend will also be slowly downward into and much of the way through the 60s as the front crosses the region. Our weather pattern is then quite different for the upcoming few days – Thursday through Saturday, dominated by clouds, below normal temperatures, and occasional shower chances, although it will be rain-free far more often than raining in any given location. Shower activity looks like it will favor areas south of I-90 Thursday, be least present Friday, and then another area can progress from northwest to southeast across the region during Saturday. Forecast tweaks upcoming as needed. Sunday’s trend is to see the front to the south lift northward but also lose identity, with a sun/cloud mix here, a warm-up, moderate humidity, but still a shower chance.

TODAY: Starts sunny, then a sun/cloud mix. Isolated to scattered showers and thunderstorms midday and afternoon. Highs 87-94, hottest inland areas, then a cooling trend from northeast to southwest this afternoon. Dew point 65+ but with a slight downward trend from midday on. Wind variable to NW up to 10 MPH, shifting to NE from northeast to southwest by late-day.

TONIGHT: Partly cloudy. Lows 63-70. Dew point 60+. Wind NE up to 10 MPH.

THURSDAY: Mostly cloudy. Scattered showers. Highs 68-75, coolest coast. Dew point 60+. Wind NE to E up to 10 MPH.

THURSDAY NIGHT: Mostly cloudy. Patchy fog. Chance of a shower. Lows 61-68. Dew point 60+. Wind E up to 10 MPH.

FRIDAY: Mostly cloudy. Chance of a shower. Highs 67-74, coolest coast. Dew point 60+. Wind E up to 10 MPH.

FRIDAY NIGHT: Mostly cloudy. Chance of showers. Fog patches. Lows 60-70. Dew point near 60. Wind SE up to 10 MPH.

SATURDAY: Mostly cloudy. Chance of showers. Highs 70-77. Dew point 60+. Wind SE up to 10 MPH.

SATURDAY NIGHT: Variably cloudy. Chance of a shower. Patchy fog. Lows 60-67. Dew point 60+. Wind SE under 10 MPH.

SUNDAY: Partly sunny. Chance of a shower. Highs 76-83. Dew point 60+. Wind S 5-15 MPH.

DAYS 6-10 (JUNE 30 – JULY 4)

Fair, warmer to finish June. A cold front brings a shower / t-storm chance July 1 with a brief heat spike. High pressure builds in with mainly fair weather July 2-4 with seasonably warm weather.

DAYS 11-15 (JULY 5-9)

Watching a trough and potential unsettled weather at some point early to mid period before fair weather dominates later in the period with high pressure in control. Temperatures near to above normal – no extremes indicated.

DAYS 1-5 (JUNE 24-28)

The hot spell that starts summer 2025 off peaks today with a high pressure ridge overhead and full sunshine, a high launch pad for temps, and high humidity. While Cape Cod will stay under 90, pretty much everywhere else exceeds it today. The immediate shores can be slightly cooler with very shallow sea breezes. The normal hot spots will make a run at the century mark, but the majority of the region will fail to reach it. Head indices, however, will have no problem getting to 100+. An uncomfortable night follows that tonight. Relief is on the way as a back-door cold front slides from northeast to southwest across the region Wednesday, though the process is slow enough that some areas (especially west and southwest of Boston) will still be on the hot side for high temps. A few isolated showers and thunderstorms can pop up with that front mainly south of I-90 and west of I-95 from midday into afternoon, otherwise not much will occur. Thursday through Saturday will feature cooler weather with the frontal boundary having become stationary to our southwest, and a couple disturbances moving along it. These can bring some episodes of showers through Friday. But Saturday, the influence of that front will fade, but another disturbance will approach and pass through from northwest to southeast, keeping the threat of showers going. However, even with 3 days of potential showers, it does not look like that many hours of rain will occur in any given locations, with the dominant features being cloudiness and cooler weather, not so much wet weather.

TODAY: Hazy sunshine. Highs 93-100 except cooler a few immediate coastal areas and especially Cape Cod. Dew point 65+. Wind W 5-15 MPH, may switch at times to a weak sea breeze along the immediate coastline.

TONIGHT: Mostly clear. Lows 72-79. Dew point 65+. Wind W up to 10 MPH.

WEDNESDAY: Partly sunny. An isolated shower or thunderstorm inland areas mainly southwest of Boston in the afternoon. Highs 78-85 coast, 86-93 inland, but a cooling trend from northeast to southwest by midday on. Dew point 65+. Wind shifting to NE 5-15 MPH from northeast to southwest.

WEDNESDAY NIGHT: Partly cloudy. Lows 63-70. Dew point 60+. Wind NE up to 10 MPH.

THURSDAY: Variably cloudy. Scattered showers. Highs 72-79, coolest coast. Dew point 60+. Wind NE to E up to 10 MPH.

THURSDAY NIGHT: Mostly cloudy. Patchy fog. Chance of a shower. Lows 61-68. Dew point 60+. Wind E up to 10 MPH.

FRIDAY: Mostly cloudy. Chance of showers. Highs 68-75, coolest coast. Dew point 60+. Wind E up to 10 MPH.

FRIDAY NIGHT: Mostly cloudy. Chance of showers. Fog patches. Lows 60-70. Dew point near 60. Wind SE up to 10 MPH.

SATURDAY: Mostly cloudy. Chance of showers. Highs 70-77. Dew point 60+. Wind SE up to 10 MPH.

DAYS 6-10 (JUNE 29 – JULY 3)

A more southerly air flow takes over for the final 2 days of June with mainly dry weather and a modest warm up with moderate humidity. Watching for a frontal passage from the northwest around July 1 with a t-storms threat. High pressure builds in with fair and seasonable weather later in the period.

DAYS 11-15 (JULY 4-8)

High pressure looks like it will dominate with fair and seasonably warm weather around the Independence Day time period, with higher humidity and unsettled weather returning mid to late period.

DAYS 1-5 (JUNE 23-27)

A strong high pressure ridge brings the heat to our region today and Tuesday, though the coast is quite vulnerable to a sea breeze today and will end up cooler than inland areas. One thing we’ll need to watch for are some coastal areas to experience a late-day temperature jump if then sea breeze collapses. Tuesday, if there are any sea breezes, they will be feeble and right at the beaches / shore roads, although some areas of Cape Cod will have a direct ocean breeze due to the prevailing wind, so that area will be cooler by default. There is also some thin high altitude wildfire smoke about, and that will give the sky a hazy look during the next couple of days. Wednesday, a back-door cold front will ease its way across the region from northeast to southwest, and a few 90+ high temps are still possible over inland areas, especially southwest of Boston. It is also this region that stands the greatest chance of a pop up shower or thunderstorm associated with the advancing frontal boundary. Thursday and Friday, our weather will be quite different, with the front sitting off to our southwest. High pressure in eastern Canada will provide a broad scale northeasterly to easterly air flow with a cooler maritime air mass. Disturbances moving along the frontal boundary to our south will bring a lot of clouds and the threat of occasional showers – so an overall unsettled, cooler set-up.

TODAY: Patchy clouds in the hills of southwestern NH and central MA early, otherwise hazy sunshine. Highs 74-81 Cape Cod, 82-89 other coastal locations (some of these may occur late-day), 90-97 inland. Dew point 65+. Wind variable up to 10 MPH with coastal sea breezes, then SW up to 10 MPH by day’s end.

TONIGHT: Clear / hazy. Lows 68-75. Dew point 65+. Wind SW up to 10 MPH.

TUESDAY: Hazy sunshine. Highs 92-99 except cooler a few immediate coastal areas and especially Cape Cod. Dew point 65+. Wind W 5-15 MPH, may switch at times to a weak sea breeze along the immediate coastline.

TUESDAY NIGHT: Mostly clear. Lows 71-78. Dew point 65+. Wind W up to 10 MPH.

WEDNESDAY: Partly sunny. An isolated shower or thunderstorm inland areas mainly southwest of Boston in the afternoon. Highs 78-85 coast, 86-93 inland, but a cooling trend from northeast to southwest by midday on. Dew point 65+. Wind shifting to NE 5-15 MPH from northeast to southwest.

WEDNESDAY NIGHT: Partly cloudy. Lows 63-70. Dew point 60+. Wind NE up to 10 MPH.

THURSDAY: Variably cloudy. Scattered showers. Highs 72-79, coolest coast. Dew point 60+. Wind NE to E up to 10 MPH.

THURSDAY NIGHT: Mostly cloudy. Patchy fog. Chance of a shower. Lows 61-68. Dew point 60+. Wind E up to 10 MPH.

FRIDAY: Mostly cloudy. Chance of showers. Highs 68-75, coolest coast. Dew point 60+. Wind E up to 10 MPH.

DAYS 6-10 (JUNE 28 – JULY 2)

The maritime air mass pattern weakens during the June 28-29 weekend with a reduction in shower chances and slightly warmer weather returning, but still coolest along the coast. A more seasonably warm pattern for the final day of June and first couple days of July, but one front to watch that can bring a shower and thunderstorm chance – most likely July 1.

DAYS 11-15 (JULY 3-7)

High pressure looks like it will dominate with fair and seasonably warm weather around the Independence Day time period, with higher humidity and unsettled weather returning later in the period.

DAYS 1-5 (JUNE 22-26)

The remains of a mesoscale convective system (MCS) bring showers and a possible thunderstorm to our region this morning (the bigger storms have occurred in NY State, west of the WHW region). After the main area moves out, there’s only a slight chance an isolated shower or storm can fire up, but otherwise the trend is for dry weather, increased humidity, but clearing and heating up as we head through the afternoon. The rain-cooled air and residual cloud cover will modify temperature maxima from what they’d have been in full-sun conditions, but you’ll still feel it by later on today. Monday’s and Tuesday’s weather is full on summertime, but Monday’s weak wind field leaves the coast open to a decent sea breeze on Monday, preventing it from getting too hot there. Always important to watch for a collapse of the sea-breeze at the coast late-day and a quick temperature rise. It’s less likely that sea breeze will be a factor Tuesday – though a few localized ones can occur, and Cape Cod of course will be cooler than much of the remainder of the region, as is typical. A back-door cold front cools the entire region down Wednesday, but right now I think this takes place with dry weather. It is Thursday that the front hanging not far to our southwest and a disturbance in the region when we can see a few showers and thunderstorms develop.

TODAY: Mainly cloudy through mid morning including widespread showers and a possible thunderstorm. Partial sun with an additional isolated thunderstorm possible midday. Mostly sunny remainder of day. Highs 83-90 except 75-82 some coastal areas. Dew point rising through 60s. Wind variable, mainly S 5-15 MPH early then variable to N.

TONIGHT: Mostly clear. Patchy fog. Lows 66-73. Dew point 65+. Wind SW up to 10 MPH.

MONDAY: Mostly sunny. Highs 86-93 inland, 78-85 coast. Dew point 65+. Wind variable up to 10 MPH with coastal sea breezes developing.

MONDAY NIGHT: Mostly clear to partly cloudy. Lows 67-74. Dew point 66+. Wind variable to SW up to 10 MPH.

TUESDAY: Mostly sunny. Highs 91-98 but considerably cooler South Coast, and possibly cooler eastern coastal areas. Dew point 65+. Wind W up to 10 MPH with an immediate coastal sea breeze potential.

TUESDAY NIGHT: Mostly clear to partly cloudy. Lows 70-77. Dew point 65+. Wind W up to 10 MPH shifting to N.

WEDNESDAY: Partly sunny. Highs 78-85. Dew point 60+. Wind NE 5-15 MPH.

WEDNESDAY NIGHT: Partly cloudy. Lows 63-70. Dew point 60+. Wind NE up to 10 MPH.

THURSDAY: Variably cloudy. Isolated to scattered showers and thunderstorms. Highs 75-82, cooler coast. Dew point 60+. Wind E up to 10 MPH.

DAYS 6-10 (JUNE 27 – JULY 1)

A frontal boundary nearby will gradually wash out while a few disturbances pass by at times in the final several days of June – bringing an occasional shower and thunderstorm threat, with a slow drying trend toward the start of July.

DAYS 11-15 (JULY 2-6)

Overall trend is upper level west to northwest flow but surface high pressure mostly dominant. While there may be a brief shower or t-storm threat a time or two, this pattern is mainly dry and seasonably warm overall.

DAYS 1-5 (JUNE 21-25)

High pressure controls our weather today with lots of sun, a pleasant breeze at time (maybe a coastal sea breeze), low humidity, and seasonable warmth. You’ll start to notice some cloudiness appearing in the northwestern sky toward the end of the day. Remember the MCS (mesoscale convective system) that has been talked about here on the blog for days? That formed last night in the Upper Plains and began its trek eastward, which it does today moving through the Upper Great Lakes. It then takes a turn southeastward on the “ring of fire” eastern side of a high pressure ridge. This propels it, likely in a decaying but still somewhat potent state, into and across New England during the first 8 to 10 hours of Sunday. While this system looks like its greatest impact will be north and west of the WHW forecast area, a round (or two) of gusty showers and thunderstorms can occur in this area from around sunrise to late morning on Sunday. This type of a set-up, even with a weakening system, can produce areas of wind damage. Hail and frequent lightning can also occur with any remaining or re-developing stronger thunderstorm cells, so we’ll have to watch for that. Residual cloudiness in the wake of the system can limit the sun for a few extra hours, and rain-cooled air will also be present, and this will have an impact on Sunday’s high temperatures, which would have been hotter otherwise. My forecast will adjust for these limiting factors, and while by late-day it may feel hot and humid in much of the region, it will still be limited from its original potential. Monday and Tuesday we have a better upper level pattern set-up for significant heat, but a weak surface pressure gradient will allow for a pretty widespread coastal sea breeze to develop on Monday, keeping coastal communities from getting too hot, while it will be hottest inland. Tuesday, the sea breeze potential is weaker, so the region overall will see its hottest day of the stretch. A back-door cold front will put an end to the heat by Wednesday, accompanied by some clouds, but no more than an isolated shower or thunderstorm as it looks this far in advance.

TODAY: Sunshine dominates. Highs 80-87, 75-82 some coastal areas. Dew point sub-60. Wind W to N up to 10 MPH with coastal sea breezes.

TONIGHT: Clouds increase. Lows 61-68. Dew point approaches 60. Wind variable to S up to 10 MPH.

SUNDAY: Mainly cloudy through mid morning including scattered to numerous showers and thunderstorms, a few of which can be strong. Partly sunny late morning to mid afternoon with an isolated thunderstorm possible. Mostly sunny late-day. Highs 83-90 except 75-82 some coastal areas. Dew point 60+. Wind variable, mainly S 5-15 MPH early but can become strong and gusty near showers and thunderstorms, then variable to mainly N 5-15 MPH by late morning on, diminishing late in the day.

SUNDAY NIGHT: Mostly clear. Patchy fog. Lows 62-69. Dew point 60+. Wind SW up to 10 MPH.

MONDAY: Mostly sunny. Highs 86-93 inland, 78-85 coast. Dew point 60+. Wind variable up to 10 MPH with coastal sea breezes developing.

MONDAY NIGHT: Mostly clear to partly cloudy. Lows 65-72. Dew point 60+. Wind variable to SW up to 10 MPH.

TUESDAY: Mostly sunny. Highs 91-98 but considerably cooler South Coast, and possibly cooler eastern coastal areas. Dew point 65+. Wind W up to 10 MPH with an immediate coastal sea breeze potential.

TUESDAY NIGHT: Mostly clear to partly cloudy. Lows 70-77. Dew point 65+. Wind W up to 10 MPH shifting to N.

WEDNESDAY: Partly sunny. Slight chance of an isolated shower or thunderstorm, favoring inland locations. Highs 78-85. Dew point 60+. Wind NE 5-15 MPH.

DAYS 6-10 (JUNE 26-30)

June 26-27 features a broad scale but weak maritime air flow with varying amounts of clouds, a few chance for showers and thunderstorms, and mild temperatures with moderate humidity. Warmer weather in the June 28-30 period with an isolated shower or thunderstorm possible but mainly dry weather. More details to come…

DAYS 11-15 (JULY 1-5)

Overall trend is upper level west to northwest flow but surface high pressure mostly dominant. While there may be a brief shower or t-storm threat a time or two, this pattern is mainly dry and seasonably warm overall.

DAYS 1-5 (JUNE 20-24)

The final hours of spring today will feature a dew point crash with incoming dry air, but this will be accompanied by quite a bit of wind on the back side of a pretty potent low pressure area moving from northern New England into southeastern Canada. Some cloudiness will be moving across our sky to start the day, but lower atmospheric drying will lead to more sun with just a few passing fair weather clouds as the day goes on. It’ll be a relatively warm day, but less hot than yesterday and even feeling a bit cool out of the sun due to the gusty breeze. That breeze will ease tonight as low pressure pulls away. We welcome summer with the occurrence of the solstice tonight, 10:41 p.m. EDT. Look for a clear evening then some varying amounts of high and middle clouds to arrive from the northwest overnight due to upstream convective activity in the Great Lakes – typical for this time of year in the pattern that evolves heading into the weekend. This may limit the sun at times Saturday, especially in the morning, but overall it’s a nice day with dry weather, warm air, less wind, and fairly low humidity. Another complex of thunderstorms, this one more potent, will be developing this evening in the Upper Plains into the Upper Midwest (something mentioned several times this week). This system will move across the Upper Great Lakes Saturday then bear right on the atmospheric highway (aka jet stream), moving across New England in the overnight and morning hours of Sunday. It’s uncertain how much of the actual thunderstorm activity will survive the trip, and while northern New England certainly stands the best chance of seeing some of that, here in our region we can see a passing shower or storm at some point between the pre-dawn and mid morning hours of Sunday – something to monitor and fine tune, eventually “now-cast”. The remainder of Sunday, behind that system, will feature a sun/cloud mix, a bit more humidity, and warm air, but I think the chance of any additional shower or thunderstorm will be extremely low – enough so that I don’t even mention it in my detailed forecast below. The upper level pattern features a ridge building into our region early next week – a heat signature. However, a weak pressure gradient leaves the coast vulnerable to sea breezes, especially Monday (less so Tuesday) so the higher heat may not occur in every location in our region.

TODAY: Sun/cloud mix, trending sunnier. Highs 78-85. Dew point falls below 60. Wind W 10-20 MPH, gusts 30 MPH or greater until late in the afternoon.

TONIGHT: Mostly clear evening. Partly cloudy overnight. Lows 57-64. Wind W 5-15 MPH.

SATURDAY: Partly cloudy morning. Mostly sunny afternoon. Highs 78-85. Wind W 5-15 MPH.

SATURDAY NIGHT: Clouds arrive. A shower or thunderstorm possible overnight, mainly north and west of Boston. Lows 60-67. Wind S 5-15 MPH, higher gusts overnight.

SUNDAY: Lots of clouds through mid morning with a shower or thunderstorm possible, then a sun/cloud mix. Highs 80-87. Dew point rises above 60. Wind W 5-15 MPH, a few higher gusts.

SUNDAY NIGHT: Mostly clear. Patchy fog. Lows 62-69. Dew point 60+. Wind SW up to 10 MPH.

MONDAY: Mostly sunny. Highs 86-93, but can be cooler along the coastline. Dew point 60+. Wind SW to variable up to 10 MPH with coastal sea breezes possible.

MONDAY NIGHT: Mostly clear to partly cloudy. Lows 65-72. Dew point 60+. Wind variable to SW up to 10 MPH.

TUESDAY: Mostly sunny. Highs 90-97 but considerably cooler South Coast, and possibly cooler eastern coastal areas. Dew point 60+. Wind SW to variable up to 10 MPH with a coastal sea breeze potential.

DAYS 6-10 (JUNE 25-29)

Trend for Canadian high pressure to move more influence with less heat, coolest coastal areas, and mostly fair weather during this period. Best chance to see a shower or thunderstorm around June 26 and/or June 27.

DAYS 11-15 (JUNE 30 – JULY 4)

Upper level west to northwest flow. This can bring a couple disturbances and shower / t-storm chances to the region, but the overall pattern is dry and seasonably warm.

DAYS 1-5 (JUNE 19-23)

A few forecast tweaks in this update to an otherwise similar outlook to yesterday’s. We start the day under a blanket of stratus clouds for much of the region which will hold back the temperature rise and take a degree or two off the potential high temps for the day, but we’re still in for a fairly hot and humid day, the first real widespread one for the region this late spring. After that cloud layer thins and dissipates, we’ll have a fair amount of sun, but some high cloud areas from upstream thunderstorms can move in later. For the WHW, the timing of an approaching cold front is late to optimize the opportunity for widespread big thunderstorms. The atmosphere will be quite unstable and a fairly healthy low for this time of year will be passing to our north, but timing / frontal position dictates that the most likely area for a solid or broken line of storms to form will be over NY State moving into VT and western MA / CT late-day / early evening. A few advanced isolated to scattered storms can occur ahead of this, but coverage would be less, into western portions of the WHW region (around the CT River Valley). I suspect whatever is left of the line will make its way in broken and weakening fashion across the rest of the region during the mid to late evening hours. A few of the storms can last longer (stronger cells that find a way to survive – outflow boundary regeneration, interaction with other boundaries, etc – which are things we can only now-cast by watching radar). Once the cold front moves through the region a couple hours either side of midnight west to east, the storm threat will come to an end, and a drier air mass will arrive. A tweak to this forecast update regarding Friday is to remove the shower and thunderstorm chance – the reason being the most unstable area in response to the disturbance passing by will be well to the west and southwest and I don’t expect more than fair weather clouds, a gusty breezy, drier air, but still warm temps. We welcome summer official with the occurrence of the solstice at 10:41p.m. on Friday. Looking into the weekend, you’ve heard talk of a complex of thunderstorms forming Friday night in the upper Plains / Midwest. I still think this will be the case. But first, we may see some debris cloudiness in the area from a small complex ahead of that one passing through our sky early Saturday, a day that otherwise looks dry and pleasantly warm. It’s that night that clouds arrive from the larger complex of storms as it exits the Great Lakes and moves through Upstate NY, adjacent southern Canada and into northwestern New England. In decaying state, it can send some showers and thunderstorms with gusty winds through our region sometime in the 3:00 a.m. to 9:00 a.m. time window of Sunday – timing and details to be tweaked further on this. The remainder of Sunday would be similar to Friday – breezy, dry, and warm. Looking ahead to Monday, it heats up again with a 90+ high temp potential. However a weak pressure gradient leaves the coast vulnerable to sea breezes, so it may be a “not-so-fast” kind of deal on the heat for the coast. Will watch that as it’s still several days away.

TODAY: Clouds give way to sun through mid morning. Sun dominant late morning to mid afternoon. Cloud/sun mix later on. Isolated to scattered thunderstorms possible southwestern NH, central MA, and adjacent CT late afternoon / early evening. Highs 80-87 South Coast, 88-95 elsewhere. Dew point 65+. Wind SW 5-15 MPH, a few higher gusts.

TONIGHT: Variably cloudy. Scattered to isolated showers and thunderstorms west to east this evening. Clearing overnight. Lows 61-68. Dew point 60+ evening, falling to 50s overnight. Wind SW 5-15 MPH, higher gusts, shifting to NW from west to east.

FRIDAY: Sun/cloud mix. Highs 78-85. Dew point falls below 60. Wind NW 5-15 MPH, gusts 20-25 MPH.

FRIDAY NIGHT: Mostly clear evening. Partly cloudy overnight. Lows 57-64,. Wind NW 5-15 MPH.

SATURDAY: Partly cloudy morning. Mostly sunny afternoon. Highs 78-85. Wind NW 5-15 MPH.

SATURDAY NIGHT: Clouds arrive. A shower or thunderstorm possible overnight, mainly north and west of Boston. Lows 60-67. Wind W 5-15 MPH, higher gusts.

SUNDAY: Lots of clouds early with a shower or thunderstorm possible Boston area southward, then mostly sunny. Highs 80-87. Wind W 5-15 MPH, higher gusts.

SUNDAY NIGHT: Mostly clear. Lows 62-69. Wind SW up to 10 MPH.

MONDAY: Partly sunny. Highs 86-93, but can be cooler along the coastline. Wind SW to variable up to 10 MPH with coastal sea breezes possible.

DAYS 6-10 (JUNE 24-28)

Brief heat spike expected June 24 but again watch for a cooler coast. Back-door front should cool the region down, maybe with a passing shower or thunderstorm briefly otherwise mostly fair weather middle of next week. Isolated showers / storms as warmer air tries to return later next week.

DAYS 11-15 (JUNE 29 – JULY 3)

General west northwest flow pattern with a a couple disturbances to pass by. These can bring a few showers and thunderstorms, but most of the time looks rain-free with variable temperatures averaging near to above normal.

DAYS 1-5 (JUNE 18-22)

A warm front moves through this morning with some showers around, and our humidity begins a spike which lasts through Thursday, along with the addition of some heat. Behind today’s early showers may come a stray sprinkle, though a disturbance passing by may kick off a heavier shower or thunderstorm near and south of I-90 tonight. The next round of storms is due later Thursday with the approach of a cold front. Timing still looks late enough that we make it through the majority of (if not all of) the daylight in the WHW area without much activity, though northern and western areas could see the first storms pop up before we get to evening – something to watch. I think the main batch of storms ahead of the front will max out to our west and arrive / cross the region while weakening in the evening and nighttime hours, exiting overnight with the passage of the cold front. This leads to a less hot / still warm, and less humid day on Friday, with only a slight chance of a pop up / passing shower or thunderstorm as an upper disturbance swings through the region. High pressure brings fair, seasonably warm, and dry weather Saturday. I’ll be watching upstream for the development of a complex of thunderstorms (Upper Plains to Upper Midwest Friday night, moving across the Great Lakes during the day Saturday). This system, probably in a decaying state, would dive east southeastward across New England in the early hours of Sunday – after midnight to shortly after sunrise. While the bigger impact of rain and wind would likely take place north and west of our region, a gusty shower or thunderstorm may visit some areas to start the day out on Sunday, but the remainder of the day, assuming my timing is correct, would be quite nice. We welcome summer official with the occurrence of the solstice at 10:41p.m. on Friday June 20…

TODAY: Mostly cloudy. Showers and a slight chance of thunder this morning. Patchy fog until mid morning. A spot sprinkle or light shower this afternoon. Highs 76-83. Dew point 60+. Wind S 5-15 MPH.

TONIGHT: Variably cloudy. Patchy fog. A shower or thunderstorm possible near and south of I-90. Lows 62-69. Dew point 60+. Wind S to SW up to 10 MPH.

THURSDAY: Partly sunny. Chance of showers and thunderstorms, favoring late-day or evening and favoring areas west and north of Boston . Highs 78-85 South Coast, 85-92 elsewhere. Dew point 60+. Wind SW 10-20 MPH.

THURSDAY NIGHT: Variably cloudy. Chance of showers and thunderstorms favoring eastern areas early. Areas of fog. Lows 60-67. Dew point 60+. Wind SW 5-15 MPH, variable near storms, shifting to NW overnight.

FRIDAY: Sun/cloud mix. A passing shower or thunderstorm possible. Highs 78-85. Dew point falls below 60. Wind NW 5-15 MPH.

FRIDAY NIGHT: Mostly clear. Lows 57-64,. Wind NW 5-15 MPH.

SATURDAY: Mostly sunny. Highs 78-85. Wind NW 5-15 MPH.

SATURDAY NIGHT: Clouds arrive. A shower or thunderstorm possible overnight, mainly north and west of Boston. Lows 60-67. Wind W 5-15 MPH, higher gusts.

SUNDAY: Lots of clouds early with a shower or thunderstorm possible Boston area southward, then mostly sunny. Highs 80-87. Wind W 5-15 MPH, higher gusts.

DAYS 6-10 (JUNE 23-27)

A couple / few days of hotter weather are probable early to mid next week, but we also have to watch a frontal boundary to our north that with adequate push could make some areas, especially northern areas and eastern coastal areas, significantly cooler. Can’t rule out a few showers and thunderstorms in a hot air mass and near any frontal boundary.

DAYS 11-15 (JUNE 28 – JULY 2)

General west northwest flow pattern with a a couple disturbances to pass by. These can bring a few showers and thunderstorms, but most of the time looks rain-free with variable temperatures averaging near to above normal.

DAYS 1-5 (JUNE 17-21)

A warm front approaches today and passes through tonight. Limited light rain can occur but no widespread or lasting wet weather. The front will bring a wind shift from east and southeast to south and southwest, and a spike in humidity. A few showers and thunderstorms are possible in the warm sector Wednesday. A more focused shower and thunderstorm chance sometime Thursday triggered by an approaching cold front is depending on the front’s timing – still leaning toward later over earlier. That will also be the “hottest” day of this week. A dry, seasonably warm air mass arrives behind the front late week, though Friday can still carry a shower and thunderstorm chance as an upper disturbance passes by. We welcome summer official with the occurrence of the solstice at 10:41p.m. on Friday June 20…

TODAY: Mostly cloudy. Short periods of light rain possible. Highs 65-72. Wind SE up to 10 MPH.

TONIGHT: Variably cloudy. Fog patches. A shower possible. Lows 60-67. Dew point 60+. Wind S up to 10 MPH.

WEDNESDAY: Variably cloudy. A shower or thunderstorm possible. Highs 76-83. Dew point 60+. Wind S 5-15 MPH.

WEDNESDAY NIGHT: Partly cloudy. Patchy fog. Lows 62-69. Dew point 60+. Wind SW up to 10 MPH.

THURSDAY: Partly sunny. Chance of showers and thunderstorms, favoring late-day or evening. Highs 78-85 South Coast, 85-92 elsewhere. Dew point 60+. Wind SW 10-20 MPH.

THURSDAY NIGHT: Variably cloudy. Chance of showers and thunderstorms favoring eastern areas early. Areas of fog. Lows 60-67. Dew point 60+. Wind SW 5-15 MPH, variable near storms, shifting to NW overnight.

FRIDAY: Sun/cloud mix. A passing shower or thunderstorm possible. Highs 78-85. Dew point falls below 60. Wind NW 5-15 MPH.

FRIDAY NIGHT: Mostly clear. Lows 57-64,. Wind NW 5-15 MPH.

SATURDAY: Mostly sunny. Highs 78-85. Wind NW 5-15 MPH.

DAYS 6-10 (JUNE 22-26)

A passing shower possible on June 22 with a disturbance – timing uncertain. Another 1 or 2 such events may occur before the end of the period, but most times rain-free. Temperatures near to above normal.

DAYS 11-15 (JUNE 27 – JULY 1)

General west northwest flow pattern with a a couple disturbances to pass by. These can bring a few showers and thunderstorms, but most of the time looks rain-free with variable temperatures averaging near to above normal.

DAYS 1-5 (JUNE 16-20)

A maritime air mass that took up residence here over the weekend hangs around early this week as well, keeping it on the cool side. A deck of status clouds and some fog blanket much of eastern MA and the NH Seacoast to start today, but fog will thin and dissipate and clouds will break with time. Tuesday will see more cloudiness return as a warm front approaches from the southwest. The approach of this front can also trigger patchy light rainfall at any time during the day and into the nighttime hours as well. Wednesday, we’ll be behind the front, in the warm sector, with a humid southerly air flow bringing lots of clouds and the chance of passing showers and possibly a thunderstorm, though most of the day in any location will be rain-free. Thursday, a wind shift to southwest allows a shot of heat into the region – modified of course along the South Coast by flow off the ocean. We’ll have to watch for some stronger thunderstorm activity with a cold front approaching from the west – timining / coverage / intensity TBD and largely dependent on the front’s timing. Right now, my leaning is late timing, which would mean the better chance for heavier storms would be the western reaches of the WHW forecast area, and a weaker version of activity into the remainder of the region in the evening or nightime, but a few days remain to fine-tune this. Behind the cold front on Friday comes drier and slightly cooler air, but an upper disturbance can still trigger a passing shower or thunderstorm that day. We welcome summer official with the occurrence of the solstice at 10:41p.m. on Friday June 20…

TODAY: Low clouds and fog southeastern NH / eastern MA thinning and breaking, otherwise a sun/cloud mix. Highs 65-72, coolest coast. Wind E up to 10 MPH.

TONIGHT: Variably cloudy. Patchy fog. Lows 55-62. Wind SE under 10 MPH.

TUESDAY: Mostly cloudy. Short periods of light rain possible. Highs 65-72. Wind SE up to 10 MPH.

TUESDAY NIGHT: Variably cloudy. Fog patches. A shower possible. Lows 60-67. Dew point 60+. Wind S up to 10 MPH.

WEDNESDAY: Variably cloudy. A shower or thunderstorm possible. Highs 76-83. Dew point 60+. Wind S 5-15 MPH.

WEDNESDAY NIGHT: Partly cloudy. Patchy fog. Lows 62-69. Dew point 60+. Wind SW up to 10 MPH.

THURSDAY: Partly sunny. Chance of showers and thunderstorms, favoring late-day or evening. Highs 78-85 South Coast, 85-92 elsewhere. Dew point 60+. Wind SW 10-20 MPH.

THURSDAY NIGHT: Variably cloudy. Chance of showers and thunderstorms. Areas of fog. Lows 60-67. Dew point 60+. Wind SW 5-15 MPH, variable near storms, shifting to NW overnight.

FRIDAY: Sun/cloud mix. A passing shower or thunderstorm possible. Highs 78-85. Dew point falls below 60. Wind NW 5-15 MPH.

DAYS 6-10 (JUNE 21-25)

Early days of summer / summertime pattern. A front may bring a shower or thunderstorm later June 22 or June 23, again late in the period. Otherwise a generally dry and warm pattern in store.

DAYS 11-15 (JUNE 26-30)

General west northwest flow pattern with a a couple disturbances to pass by. These can bring a few showers and thunderstorms, but most of the time looks rain-free with variable temperatures averaging near to above normal.

DAYS 1-5 (JUNE 15-19)

Happy Father’s Day to the dads reading! Another quick update as this recovery is like taking the Cog Railway up Mount Washington, but leaving the actual train behind… 😉 No big changes again. High pressure to northeast, gradually slips southward the next few days. Our air flow goes from easterly to southerly between now and midweek. Meanwhile, a little jet stream energy tries to move in at times. This, combined with increased low level moisture, will eventually lead to the return of shower chances in our forecast Tuesday and Wednesday. Thursday, we get a brief shot of heat and humidity along with a chance of thunderstorms as a cold front will be approaching from the west at that time. And rewinding a bit, when I say “heat”, I don’t mean Bermuda High super heat blast etc. – like the hype you may have already seen on social media (“death ridge”, etc.) .. Ignore all that. Yup there’s some hot weather coming for parts of the East this coming week – it’s called a pattern change. For us, it means a brief shot of above normal temperatures as we’re in an overall west northwest jet flow and close to boundaries of cooler air.

TODAY: Mostly cloudy to partly sunny. Highs 65-72, coolest coastal areas. Wind E up to 10 MPH.

TONIGHT: Mostly cloudy. Lows 53-60. Wind SE up to 10 MPH.

MONDAY: Partly sunny to mostly cloudy. Highs 65-72. Wind S up to 10 MPH.

MONDAY NIGHT: Mostly cloudy. Lows 55-62. Wind S up to 10 MPH.

TUESDAY: Variably cloudy. Chance of a shower, mainly west of I-95 later-day. Highs 71-78. Wind S 5-15 MPH.

TUESDAY NIGHT: Variably cloudy. Fog patches. A shower possible. Lows 60-67. Dew point 60+. Wind S up to 10 MPH.

WEDNESDAY: Variably cloudy. A shower or thunderstorm possible. Highs 76-83. Dew point 60+. Wind S 5-15 MPH.

WEDNESDAY NIGHT: Partly cloudy. Patchy fog. Lows 62-69. Dew point 60+. Wind SW up to 10 MPH.

THURSDAY: Partly sunny. Chance of showers and thunderstorms, favoring late-day or evening. Highs 78-85 South Coast, 85-92 elsewhere. Dew point 60+. Wind SW 10-20 MPH.

DAYS 6-10 (JUNE 20-24)

The summer solstice occurs at 10:54 p.m. on June 20. That day will feature less humidity but a shower or thunderstorm chance as a secondary trough sweeps through the region – most of the day being rain-free however. June 21-22 weekend looks mostly dry and seasonably warm but cannot rule out a shower or thunderstorm for some areas on June 22 with a trough nearby. Another disturbance can bring a shower or storm threat June 23 and/or 24.

DAYS 11-15 (JUNE 25-29)

General west northwest flow pattern with a a couple disturbances to pass by. These can bring a few showers and thunderstorms, but most of the time looks rain-free and fairly seasonable, with some normal temperature variability.

DAYS 1-5 (JUNE 14-18)

Very short update as I am treating illness with meds and resting a lot. Nothing really changed in the outlook anyway. Low pressure passing to south today – wettest this morning, may linger longer South Coast into afternoon. High pressure noses in barely from the northeast later today into Sunday, may result in some partial clearing, but overall a cloud-dominant, cool weekend, but dry after the damp start. A turn to a more southerly air flow the first half of next week means a slow warm-up with increased humidity. I’ll detail this more on tomorrow’s post.

TODAY: Cloudy start with rain ending northwest to southeast in the morning. Lots of clouds / breaks of sun afternoon with some lingering showers possible South Coast. Highs 64-71, coolest coast. Wind NE to E 5-15 MPH.

TONIGHT: Variably cloudy. Lows 53-60. Wind E up to 10 MPH.

SUNDAY: Mostly cloudy to partly sunny. Highs 65-72, coolest coastal areas. Wind E up to 10 MPH.

SUNDAY NIGHT: Mostly cloudy. Lows 53-60. Wind SE up to 10 MPH.

MONDAY: Partly sunny to mostly cloudy. Highs 65-72. Wind S up to 10 MPH.

MONDAY NIGHT: Mostly cloudy. Lows 55-62. Wind S up to 10 MPH.

TUESDAY: Variably cloudy. Highs 71-78. Wind S 5-15 MPH.

TUESDAY NIGHT: Variably cloudy. Fog patches. Lows 60-67. Dew point 60+. Wind S up to 10 MPH.

WEDNESDAY: Variably cloudy. Highs 76-83. Dew point 60+. Wind S 5-15 MPH.

DAYS 6-10 (JUNE 19-23)

Juneteenth holiday on June 19 features high humidity in a southwesterly flow and a chance of late-day or evening showers/thunderstorms with the approach of a cold front. Secondary disturbance may trigger a shower or storm June 20 but overall looks drier with a northwesterly air flow. We welcome summer with the occurrence of the solistice at 10:54 p.m. that night. High pressure brings fair and seasonably warm weather June 21. Northwest flow disturbance can bring a passing shower or thunderstorm a time or two June 22-23 but overall, rain-free and seasonably warm weather.

DAYS 11-15 (JUNE 24-28)

General west northwest flow pattern with a a couple disturbances to pass by. These can bring a few showers and thunderstorms, but most of the time looks rain-free and fairly seasonable, with some normal temperature variability.