DAYS 1-5 (AUGUST 16-20)

High pressure shifts offshore today, but dew points remain in check, and it will be a nice day by mid August standards. While starting with sun in most of the region (exceptions are a stratus deck in southern RI and patchy Cape Cod clouds), we’ll end up with a sun/cloud mix, both from the development of fair weather clouds, a couple of which can become unfair and deliver an isolated shower or a thunderstorm well north and west of Boston later today, and the advection of high and mid level cloud patches ahead of an approaching warm front, which will pass through the region tonight, introducing a southerly air flow and higher dew point air. This sets us up for a warm (coast) to hot (inland) and more humid Sunday. Thunderstorms will probably pop up in isolated to scattered fashion later Sunday ahead of an approaching cold front. I don’t think the conditions are favorable enough for a sweeping squall line with this frontal boundary as it passes through, but more scattered clusters of showers and thunderstorms over a few hours from mid afternoon to early evening – northwest to southeast. We’ll have to keep an eye out for an isolated severe storm or two. Behind the front comes a cooler, drier air mass for the start of next week. Cloudiness becomes more abundant later Tuesday or Wednesday, including at least a slight shower threat from the remnants of an upstream disturbance moving in from the northwest, but this does not look like a big deal for our region at this point. Meanwhile, Hurricane Erin is undergoing rapid intensification and will be a strong one as it makes a northward and eventually northeastward turn over the next several days. By “day 5” (Wednesday), the hurricane will be passing between the US East Coast and Bermuda, more likely slightly closer to Bermuda than the US East Coast. Impact from Erin will be limited to rough surf and large swells which will begin to increase along our coast during the first few days of next week.

TODAY: Fog patches early morning. Low clouds southern RI early morning. Patchy clouds Cape Cod early to mid morning. Sunshine elsewhere morning. A sun/cloud mix this afternoon. Chance of an isolated shower or thunderstorm, mainly in southwestern New Hampshire or north central Massachusetts late in the day. Highs 75-82 coast, 82-89 inland. Dew point 50s to near 60. Wind variable up to 10 MPH / coastal sea breezes.

TONIGHT: Partly to mostly cloudy. Areas of fog especially near South Coast. Lows 62-69. Dew point rises into 60s. Wind S up to 10 MPH.

SUNDAY: Partly sunny. Afternoon and evening showers and thunderstorms probable. Highs 85-92 except cooler South Coast. Dew point rises to near 70. Wind SW 5-15 MPH.

SUNDAY NIGHT: Clearing. Lows 57-64. Dew point falls to 50s. Wind N 5-15 MPH.

MONDAY: Sunny to partly cloudy. Highs 73-80. Dew point remains in 50s. Wind NE 5-15 MPH.

MONDAY NIGHT: Mostly clear. Low elevation fog patches. Lows 52-59. Dew point lower 50s. Wind variable under 10 MPH.

TUESDAY: Mostly sunny morning. Increasing clouds afternoon. Highs 72-79. Dew point in 50s. Wind variable up to 10 MPH with coastal sea breezes.

TUESDAY NIGHT / WEDNESDAY: Variably cloudy. Chance of a few showers. Lows 56-63. Highs 71-78. Dew point in 50s. Wind variable 5-15 MPH.

DAYS 6-10 (AUGUST 21-25)

Fair weather August 21-22, coolest coast with onshore flow, also large swells / surf along coast as Hurricane Erin makes its closest pass, but well offshore. August 23-25 features higher humidity and a few shower / t-storm chances, but no indications of widespread, lasting wet weather.

DAYS 11-15 (AUGUST 26-30)

Pattern indications are for a more northwesterly air flow in the region. Some up and down temps, but trend for cooler. Shower potential with a frontal passage around August 28.

DAYS 1-5 (AUGUST 15-19)

Canadian high pressure moves in today, delivering drier air and fair weather, then hangs around into the start of the weekend before drifting southeastward over the Atlantic waters by Sunday. An approaching warm front will bring patchy clouds Saturday, otherwise that will be a rain-free, comfortable day, before a spike of heat and humidity Sunday, along with a good chance of showers and thunderstorms from an approaching cold front. This will be followed by another Canadian high pressure area with cooler, dry weather early next week.

TODAY: Mostly sunny. Highs 75-82. Dew point 60+ South Coast, 50s elsewhere. Wind NW to N up to 10 MPH.

TONIGHT: Clear. Ground fog patches possible in low elevations areas. Lows 53-60, coolest interior valleys, mildest urban areas. Dew point lower to middle 50s. Wind calm.

SATURDAY: Partly sunny. Highs 80-87, coolest coast. Dew point sub-60. Wind variable up to 10 MPH with coastal sea breezes.

SATURDAY NIGHT: Partly cloudy. Patchy fog overnight Lows 62-69. Dew point rises slow over 60. Wind S up to 10 MPH.

SUNDAY: Partly sunny. Afternoon and evening showers and thunderstorms probable. Highs 85-92 except cooler South Coast. Dew point rises through 60s. Wind SW 5-15 MPH.

SUNDAY NIGHT: Clearing. Lows 57-64. Dew point falls to 50s. Wind N 5-15 MPH.

MONDAY: Sunny to partly cloudy. Highs 73-80. Dew point remains in 50s. Wind NE 5-15 MPH.

MONDAY NIGHT: Mostly clear. Low elevation fog patches. Lows 52-59. Dew point lower 50s. Wind variable under 10 MPH.

TUESDAY: Mostly sunny. Highs 72-79. Dew point in 50s. Wind variable up to 10 MPH with coastal sea breezes.

DAYS 6-10 (AUGUST 20-24)

A stretch of fair and pleasant weather follows mid to late next week, during which time surf and swells along the coast will increase as Erin passes by between Bermuda and the US East Coast as a formidable hurricane. The August 23-24 weekend presents higher humidity and eventually a shower and thunderstorm chance – details TBD.

DAYS 11-15 (AUGUST 25-29)

Pattern indications are for a more northwesterly air flow in the region. Some up and down temps, but trend for cooler. Shower potential with a frontal passage around August 28.

DAYS 1-5 (AUGUST 14-18)

A cold front saunters through the region from northwest to southeast today, briefly pausing before finally moving offshore tonight. This sets up the potential for unsettled weather with showers and thunderstorms this afternoon and early evening. The position of the front dictates that today’s greatest chance for such activity is from the I-95 belt south and east. While I’m not expecting a widespread coverage of storms, any that do occur can be a bit potent, with local flash flooding the primary concern. Keep this in mind if traveling or doing any outside activity during the afternoon hours. An abundance of cloud cover today will be one limiting factor for storm development, not allowing full sun heating and maximization of instability. Any shower and thunderstorm activity will diminish this evening and it clears out tonight as a dry air mass arrives from Canada. High pressure builds in Friday into Saturday with pleasant mid August weather. Friday will feature a few fair weather cumulus clouds, while Saturday we see some patches of high and mid level clouds ahead of an approaching warm front. This boundary will not likely have enough moisture with it to cause any rainfall, hence the dry forecast for Saturday, but it will lead a very warm and more humid air mass into our region for Sunday, at which time an approaching cold front will combine with the warmth and humidity to trigger late-day showers and thunderstorms – the exact timing and coverage of which are to be determined. But for now it looks like we’ll get through much of the day prior to the threat’s existence. Another dry, cooler air mass arrives from Canada behind this front for Monday.

TODAY: Variably cloudy. Scattered showers and thunderstorms develop this afternoon into early evening, favoring the I-95 belt south and east. Highs 75-82 South Coast, 89-89 elsewhere. Dew point upper 60s to lower 70s. Wind S to SW 5-15 MPH, but can be briefly variable, strong, and gusty near any thunderstorms.

TONIGHT: Clearing. Patchy ground fog forms especially in lower elevations. Lows 62-69. Dew point falls below 60 north of I-90 but 60+ to the south. Wind variable to NW up to 10 MPH.

FRIDAY: Mostly sunny. Highs 78-85. Dew point 60+ South Coast, 50s elsewhere. Wind NW to N up to 10 MPH.

FRIDAY NIGHT: Clear. Ground fog patches possible in low elevations areas. Lows 53-60, coolest interior valleys, mildest urban areas. Dew point lower to middle 50s. Wind calm.

SATURDAY: Partly sunny. Highs 78-85, coolest coast. Dew point sub-60. Wind variable up to 10 MPH with coastal sea breezes.

SATURDAY NIGHT: Partly cloudy. Patchy fog overnight Lows 62-69. Dew point rises slow over 60. Wind S up to 10 MPH.

SUNDAY: Partly sunny. Late-day showers and thunderstorms possible. Highs 85-92 except cooler South Coast. Dew point rises through 60s. Wind SW 5-15 MPH.

SUNDAY NIGHT: Clearing. Lows 57-64. Dew point falls to 50s. Wind NW 5-15 MPH.

MONDAY: Sunny to partly cloudy. Highs 75-82. Dew point remains in 50s. Wind NW 5-15 MPH.

DAYS 6-10 (AUGUST 19-23)

Watch for a quick-moving disturbance to bring a shower chance August 19. A stretch of fair and pleasant weather follows mid to late next week, but during this time we’ll have to watch forecast Hurricane Erin likely making a re-curve off the US East Coast, more likely closer to Bermuda than the US. This would generate higher surf and larger ocean swells along the coast.

DAYS 11-15 (AUGUST 24-28)

Pattern indications are for a more northwesterly air flow in the region. Some up and down temps, but trend for cooler. Shower potential with trough / frontal passages around August 24 & 28.

DAYS 1-5 (AUGUST 13-17)

High pressure shifted offshore overnight, introducing a south to southwest air flow, higher dew points, even a layer of stratus and some fog over many areas south of I-90 and in some hilly terrain of north central MA and southwestern NH. This is a little more aggressive intrusion of higher humidity that I had expected, and along with a trend in reliable short-range convective guidance leads me to conclude our thunderstorm chances are better today than I previously prognosticated. Since these will be triggered by an approaching cold front from the west northwest, the greatest chance to see them is north and west of Boston from the second half of the afternoon until around sunset, so anybody with outdoor plans or traveling should be aware of that chance. Prior to that, a very warm to hot day is ours along with that higher humidity. The aforementioned cold front will cross the region on Thursday, bringing the shower and thunderstorm chance south and east with it, and we’ll note it being a little less hot but still humid. High pressure builds in behind the front, bringing fair, pleasant August mid August weather for Friday and Saturday, before another short-lived heat and humidity spike ahead of another cold front Sunday, with the chance of some late day shower and thunderstorm activity ahead of that front.

TODAY: Low clouds / fog patches southwestern NH, central MA, and most area south of I-90 into mid morning before sun elsewhere expands into these areas, but then gives way to a variably cloudy sky west to east later. Showers and thunderstorms possible mid afternoon on, particularly north and west of Boston. Highs 78-85 South Coast, 86-93 elsewhere. Dew point middle 60s to near 70. Wind S to SW up to 10 MPH, but can be strong and gusty near any storms.

TONIGHT: Variably cloudy with a chance of showers and thunderstorms early, especially north of Boston, then partly cloudy with patchy fog forming. Lows 67-74. Dew point upper 60s. Wind SW up to 10 MPH.

THURSDAY: Partly sunny. Scattered showers and thunderstorms likely. Highs 85-92 except cooler South Coast / Cape Cod. Dew point upper 60s. Wind SW 5-15 MPH.

THURSDAY NIGHT: Partly cloudy. Chance of a shower early. Patchy fog. Lows 63-70. Dew point 60+. Wind SW to variable to NW up to 10 MPH.

FRIDAY: Mostly sunny. Highs 78-85. Dew point falls below 60. Wind NW to N up to 10 MPH.

FRIDAY NIGHT: Mostly clear. Fog patches interior lower elevations. Lows 56-63. Dew point near 55. Wind N under 10 MPH.

SATURDAY: Mostly sunny. Highs 81-88, cooler some coastal areas. Dew point under 60. Wind N up to 10 MPH with coastal sea breezes.

SATURDAY NIGHT: Mostly clear. Lows 60-67. Dew point approaches 60. Wind S up to 10 MPH.

SUNDAY: Partly sunny. Late-day showers and thunderstorms possible. Highs 85-92 except cooler South Coast. Dew point rises through 60s. Wind SW 5-15 MPH.

DAYS 6-10 (AUGUST 18-22)

Fair, less humid August 18. Watch for a quick-moving disturbance to bring a shower chance August 19. A stretch of fair and pleasant weather follows mid to late next week, but during this time we’ll have to watch forecast Hurricane Erin likely making a re-curve off the US East Coast, more likely closer to Bermuda than the US. This would generate higher surf and larger ocean swells along the coast.

DAYS 11-15 (AUGUST 23-27)

Pattern indications are for a more northwesterly air flow in the region. During this period it would be a warmer start to the period, a mid-period disturbance with a shower / t-storm threat, and a late-period cooler shot.

DAYS 1-5 (AUGUST 12-16)

High pressure dominates with fair weather and a peak to the hot stretch today. It will still be on the hot side Wednesday and Thursday but down a couple degrees on average each day while the humidity increases a bit. Isolated late-day showers and thunderstorms may pop up on Wednesday. Thursday, a cold front will bring a better chance of showers and storms. Canadian high pressure brings fair weather and lower humidity late week.

TODAY: Sunny. Highs 80-87 coast, 88-95 inland. Dew point middle 60s. Wind variable to S up to 10 MPH with coastal sea breezes.

TONIGHT: Clear. Fog patches low elevations. Lows 66-73. Dew point middle 60s. Wind S under 10 MPH.

WEDNESDAY: Sunny to partly cloudy. Isolated late-day showers and thunderstorms possible. Highs 78-85 South Coast, 86-93 elsewhere. Dew point middle to upper 60s. Wind SW up to 10 MPH.

WEDNESDAY NIGHT: Partly cloudy. Fog patches low elevations. Lows 67-74. Dew point upper 60s. Wind SW up to 10 MPH.

THURSDAY: Partly sunny. Scattered showers and thunderstorms likely. Highs 85-92 except cooler South Coast / Cape Cod. Dew point upper 60s. Wind SW 5-15 MPH.

THURSDAY NIGHT: Partly cloudy. Chance of a shower early. Patchy fog. Lows 63-70. Dew point 60+. Wind SW to variable to NW up to 10 MPH.

FRIDAY: Mostly sunny. Highs 78-85. Dew point falls below 60. Wind NW to N up to 10 MPH.

FRIDAY NIGHT: Mostly clear. Fog patches interior lower elevations. Lows 56-63. Dew point near 55. Wind N under 10 MPH.

SATURDAY: Mostly sunny. Highs 81-88, cooler some coastal areas. Dew point under 60. Wind N up to 10 MPH with coastal sea breezes.

DAYS 6-10 (AUGUST 17-21)

Briefly hotter August 17 with late-day or evening shower/t-storm chances with a cold front approaching. Fair, lower humidity but seasonable warmth early to middle portion of next week. Watching the track of forecast Hurricane Erin which is expected to be somewhere offshore of the US East Coast by the end of the period, generating higher surf at our shoreline.

DAYS 11-15 (AUGUST 22-26)

Forecast Hurricane Erin generates rough surf early period during what is most likely a well-offshore recurve. Fair weather early to mid period. Shower/thunderstorm chances increase later in the period from moisture moving in from the west and south.

DAYS 1-5 (AUGUST 11-15)

High pressure surface and aloft keeps our weather very “Augusty” into midweek with daily sunshine, hotter temps inland and cooler coastal sea breezes, and moderate to borderline high humidity, but short of oppressive. Thursday, a cold front passing through the region may trigger a few showers and thunderstorms, but it remains to be seen how widespread they will be. While that day is a little less hot, it will likely be the most humid day of this week, before drier and slightly cooler air arrives behind that front on Friday.

TODAY: Sunny. Highs 78-85 coast, 86-93 inland. Dew point lower 60s. Wind variable to S up to 10 MPH with coastal sea breezes.

TONIGHT: Clear. Fog patches low elevations. Lows 63-70. Dew point lower 60s. Wind S under 10 MPH.

TUESDAY: Sunny. Highs 78-85 coast, 86-93 inland. Dew point middle 60s. Wind variable to S up to 10 MPH with coastal sea breezes.

TUESDAY NIGHT: Clear. Fog patches low elevations. Lows 65-72. Dew point middle 60s. Wind S under 10 MPH.

WEDNESDAY: Sunny to partly cloudy. Highs 78-85 South Coast, 86-93 elsewhere. Dew point middle to upper 60s. Wind SW up to 10 MPH.

WEDNESDAY NIGHT: Partly cloudy. Fog patches low elevations. Lows 67-74. Dew point upper 60s. Wind SW up to 10 MPH.

THURSDAY: Partly sunny. Chance of showers and thunderstorms. Highs 86-94 except cooler South Coast / Cape Cod. Dew point upper 60s. Wind SW 5-15 MPH.

THURSDAY NIGHT: Partly cloudy. Chance of a shower early. Patchy fog. Lows 63-70. Dew point 60+. Wind SW to variable to NW up to 10 MPH.

FRIDAY: Mostly sunny. Highs 80-87. Dew point falls below 60. Wind NW to N up to 10 MPH.

DAYS 6-10 (AUGUST 16-20)

Watching for a frontal boundary to bring a shower / thunderstorm chance later August 17 or August 18, and again later August 19 or early August 20, though much of this period will feature rain-free weather and near to above normal temperatures.

DAYS 11-15 (AUGUST 21-25)

Watching the tropics for a potential system somewhere off the US East Coast early in the period, but this is a very tentative and low confidence outlook, with many days left to figure out the future development and behavior of a system still very far away. Otherwise, watch for one more frontal boundary nearby at some point mid to late period with a shower and thunderstorm chance.

DAYS 1-5 (AUGUST 10-14)

Your Sunday update will be a quick one, not requiring much effort on my part other than a minor tweak to limit the shower and thunderstorm chance to a cold frontal passage Thursday. The days leading up to that will be dominated by high pressure at the surface and aloft with warm to hot summer weather and a daily opportunity for cooling coastal sea breezes. Humidity, while increasing and somewhat noticeable, will never become oppressive during this stretch.

TODAY: Sunny. Highs 77-84 coast, 85-92 inland. Dew point around 60. Wind variable to S up to 10 MPH with coastal sea breezes.

TONIGHT: Clear. Fog patches low elevations. Lows 63-70. Dew point lower 60s. Wind S under 10 MPH.

MONDAY: Sunny. Highs 78-85 coast, 86-93 inland. Dew point lower 60s. Wind variable to S up to 10 MPH with coastal sea breezes.

MONDAY NIGHT: Clear. Fog patches low elevations. Lows 63-70. Dew point lower 60s. Wind S under 10 MPH.

TUESDAY: Sunny. Highs 78-85 coast, 86-93 inland. Dew point middle 60s. Wind variable to S up to 10 MPH with coastal sea breezes.

TUESDAY NIGHT: Clear. Fog patches low elevations. Lows 65-72. Dew point middle 60s. Wind S under 10 MPH.

WEDNESDAY: Sunny to partly cloudy. Highs 78-85 South Coast, 86-93 elsewhere. Dew point middle to upper 60s. Wind SW up to 10 MPH.

WEDNESDAY NIGHT: Partly cloudy. Fog patches low elevations. Lows 67-74. Dew point upper 60s. Wind SW up to 10 MPH.

THURSDAY: Partly sunny. Chance of showers and thunderstorms. Highs 86-94 except cooler South Coast / Cape Cod. Dew point upper 60s. Wind SW 5-15 MPH.

DAYS 6-10 (AUGUST 15-19)

High pressure brings fair weather and lower humidity during August 15-16. A couple shower and thunderstorm chances appear possible from later August 17 into August 19. Temperatures near to above normal for the stretch but no major heat appears likely.

DAYS 11-15 (AUGUST 20-24)

Overall pattern presents seasonable to slightly above normal temperatures with a few opportunities for showers and thunderstorms in an otherwise mainly rain-free pattern. A little sanity among all the social media hype about East Coast hurricanes once again: As usual, as a meteorologist, I monitor the tropics. I see what “the models” say. I also know how to utilize the models, which also means knowing when they cannot give you reliable information. If you read this blog frequently, you know the drill on this. Watching the pattern. If there comes a point I feel there’s a threat of something in this forecast time frame, or any point going forward, you’ll know, and the information will be passed along in a responsible manner.

DAYS 1-5 (AUGUST 9-13)

After a cooler than average first week of August, then a couple of seasonable days, including today as high pressure sits over the region, we’ll enter a stretch of above normal temperatures due to building upper level high pressure and continued dominant surface high pressure Sunday into the middle of next week. With a lack of strong surface gradient wind, coastal areas will be susceptible to sea breeze on a daily basis, which will keep the heat in check there, probably keeping many of those areas from ever reaching 90 during the above normal temperature stretch. Higher temperatures are much more likely over inland areas. It is not until Wednesday that we may finally see the chance of a pop-up shower or thunderstorm mainly over inland areas as we see the approach of a trough from the west. Summertime in New England!

TODAY: Sunny. Highs 76-83, coolest coast. Dew point upper 50s. Wind variable up to 10 MPH including coastal sea breezes.

TONIGHT: Clear. Lows 61-68. Dew point nearing 60. Wind S up to 10 MPH.

SUNDAY: Sunny. Highs 77-84 coast, 85-92 inland. Dew point around 60. Wind variable to S up to 10 MPH with coastal sea breezes.

SUNDAY NIGHT: Clear. Fog patches low elevations. Lows 63-70. Dew point lower 60s. Wind S under 10 MPH.

MONDAY: Sunny. Highs 78-85 coast, 86-93 inland. Dew point lower 60s. Wind variable to S up to 10 MPH with coastal sea breezes.

MONDAY NIGHT: Clear. Fog patches low elevations. Lows 63-70. Dew point lower 60s. Wind S under 10 MPH.

TUESDAY: Sunny. Highs 78-85 coast, 86-93 inland. Dew point middle 60s. Wind variable to S up to 10 MPH with coastal sea breezes.

TUESDAY NIGHT: Clear. Fog patches low elevations. Lows 65-72. Dew point middle 60s. Wind S under 10 MPH.

WEDNESDAY: Sunny to partly cloudy. An isolated pop-up thunderstorm possible mainly central MA and southwestern NH. Highs 78-85 South Coast, 86-93 elsewhere. Wind SW up to 10 MPH.

DAYS 6-10 (AUGUST 14-18)

Warm to hot and more humid August 14 with a shower and thunderstorm chance as a frontal boundary moves through the region from west to east. High pressure brings fair weather and lower humidity during August 15-16. Next trough / front may return a shower / t-storm chance August 17 or 18.

DAYS 11-15 (AUGUST 19-23)

There are model runs that depict a tropical storm or hurricane threat for the East Coast as we move through this time frame. However, these computer models cannot be trusted with such prognostications without an actual system to initialize properly. Additionally, looking out at the pattern for both development and likely tracks of systems, I would not lean toward an East Coast threat during this time frame – keeping in mind the natural uncertainty with a forecast out that far. However, I’m always eyeing the tropics for development at this time of year, so if anything comes up, you’ll know. My actual outlook for this period is for a fairly quiet pattern overall, maybe 1 or 2 shower and thunderstorm opportunities, and no sustained major heat.

DAYS 1-5 (AUGUST 8-12)

High pressure continues its dominance through the next several days. Pleasant air will continue to dominate today and Saturday before heat and humidity build gradually Sunday and early next week.

TODAY: Mostly sunny. Highs 77-84, cooler some coastal areas. Dew point 60+. Wind variable up to 10 MPH with coastal sea breezes.

TONIGHT: Mostly clear. Patchy fog. Lows 61-68. Dew point 60+. Wind S up to 10 MPH.

SATURDAY: Mostly sunny. Highs 79-86, cooler Cape Cod / South Coast. Dew point 60+. Wind S up to 10 MPH.

SATURDAY NIGHT: Mostly clear. Lows 62-69. Dew point 60+. Wind S to SW up to 10 MPH.

SUNDAY: Mostly sunny. Highs 85-92, except cooler at the coast. Dew point 65+. Wind SW up to 10 MPH but coastal sea breezes likely.

SUNDAY NIGHT: Mostly clear. Patchy fog. Lows 65-72. Dew point 65+. Wind SW up to 10 MPH.

MONDAY: Mostly sunny. Highs 87-94, except cooler at the coast. Dew point near 70. Wind SW up to 10 MPH but coastal sea breezes likely.

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

TUESDAY: Mostly sunny. Highs 87-94, except cooler at the coast. Dew point near 70. Wind SW up to 10 MPH but coastal sea breeze likely.

DAYS 6-10 (AUGUST 13-17)

Heat and humidity dominate early period. A frontal boundary may bring a shower or thunderstorm around August 14 before fair, warm, less humid weather arrives later in the period.

DAYS 11-15 (AUGUST 18-22)

Subtle changes may take place with a little more tropical moisture for a few shower and thunderstorm chances, but likely limited. Temperature near to above normal.

DAYS 1-5 (AUGUST 7-11)

High pressure remains dominant and will do so through the weekend into early next week as it drifts to the south and we undergo a slow warm-up at first, then a spike of heat and higher humidity by Sunday and Monday. Wildfire smoke that has been with us for a few days is now on the decrease and will not be much of an issue during the next several days.

TODAY: Lingering high altitude smoke departs and sun-dimming high clouds thin out and move away with an increasing amount of sunshine. Highs 76-83, coolest coast. Dew point near 60. Wind variable up to 10 MPH with light coastal sea breezes.

TONIGHT: Mostly clear. Patchy fog. Lows 61-68. Dew point 60+. Wind variable up to 10 MPH.

FRIDAY: Mostly sunny. Highs 77-84, cooler some coastal areas. Dew point 60+. Wind variable up to 10 MPH with coastal sea breezes.

FRIDAY NIGHT: Mostly clear. Patchy fog. Lows 61-68. Dew point 60+. Wind S up to 10 MPH.

SATURDAY: Mostly sunny. Highs 81-88, cooler Cape Cod / South Coast. Dew point 60+. Wind S up to 10 MPH.

SATURDAY NIGHT: Mostly clear. Lows 62-69. Dew point 60+. Wind S to SW up to 10 MPH.

SUNDAY: Mostly sunny. Highs 86-93, cooler South Coast. Dew point 65+. Wind SW 5-15 MPH.

SUNDAY NIGHT: Mostly clear. Patchy fog. Lows 65-72. Dew point 65+. Wind SW up to 10 MPH.

MONDAY: Mostly sunny. Highs 88-95, cooler South Coast. Dew point near 70. Wind SW 5-15 MPH.

DAYS 6-10 (AUGUST 12-16)

Heat and humidity dominate early period. A frontal boundary may bring a shower or thunderstorm around August 14 before fair, warm, less humid weather arrives later in the period.

DAYS 11-15 (AUGUST 17-21)

The weather pattern looks fairly typical for August with dominant high pressure off the US East Coast providing warmth and higher humidity. Daily chances for pop up showers and thunderstorms, but the chance can be increased with a disturbance moving in from the west one or two times.

DAYS 1-5 (AUGUST 6-10)

Again not a lot to do for adjustments in this outlook as we have a continuation of wildfire smoke and lots of high clouds dimming the sun today, but there will be a gradual decrease in the thickness of the smoke plume from the north and east later today into Thursday, and a loss of the high cloudiness with increasing sunshine during the day Thursday too. Both days will feature comfortable air with low to borderline moderate humidity but temperatures slightly below normal for early August. A warming trend takes place Friday and over the weekend with a slight increase in humidity by late weekend. Other than the previously-mentioned chance of a pop up shower or thunderstorm over the hills of southwestern NH and/or central MA later today, we’re looking at dry weather across the region through the weekend as high pressure remains in control, sinking gradually southward for the slow warming trend.

TODAY: Limited sun with high clouds and smoke aloft. Developing convective clouds afternoon with isolated showers and thunderstorms possible in the hills of southwestern NH and central MA. Highs 76-83, cooler coastal areas. Dew point middle 50s to near 60. Wind E up to 10 MPH.

TONIGHT: Smoke aloft thins gradually but lots of high clouds remain. Any clouds in the hills dissipate but patchy fog and low clouds form overnight. Lows 61-68. Dew point middle 50s to near 60. Wind E to variable under 10 MPH.

THURSDAY: Decreasing high clouds and smoke aloft with increasing sun. Highs 78-85, cooler some coastal areas. Dew point near 60. Wind variable up to 10 MPH with light coastal sea breezes.

THURSDAY NIGHT: Mostly clear. Patchy fog. Lows 61-68. Dew point 60+. Wind variable up to 10 MPH.

FRIDAY: Mostly sunny. Highs 80-87, cooler some coastal areas. Dew point 60+. Wind variable up to 10 MPH with coastal sea breezes.

FRIDAY NIGHT: Mostly clear. Patchy fog. Lows 61-68. Dew point 60+. Wind S up to 10 MPH.

SATURDAY: Mostly sunny. Highs 81-88, cooler Cape Cod / South Coast. Dew point near 60+. Wind S up to 10 MPH.

SATURDAY NIGHT: Mostly clear. Lows 62-69. Dew point 60+. Wind S to SW up to 10 MPH.

SUNDAY: Mostly sunny. Highs 86-93. Dew point 65+. Wind SW 5-15 MPH.

DAYS 6-10 (AUGUST 11-15)

Heat and humidity dominate early to mid next week as high pressure sits to the south, and there is a present but limited chance of pop up afternoon showers and thunderstorms, but with low coverage. A frontal crossing the region from the west may enhance shower and thunderstorm chances after that briefly before fair weather returns at the end of the period.

DAYS 11-15 (AUGUST 16-20)

“Typical August” pattern with high pressure in the western Atlantic providing warmth and higher humidity. A daily opportunity for pop-up showers and storms which could be enhanced by any disturbances moving in from the west. The overall pattern looks fairly tranquil though.

DAYS 1-5 (AUGUST 5-9)

A thick plume of Canadian wildfire smoke continues today but the trend will be to thin from northeast to southwest starting today and continuing Wednesday, so that the smoke should be much thinner beyond midweek. There will be a fair amount of high cloudiness in the sky too today into Wednesday, which will also filter the sun each day. Otherwise, high pressure dominates our weather during the next 5 days. Only the remains of a weak frontal boundary and a little instability / orographic lift can pop a few isolated showers and thunderstorms in the hilly terrain of southwestern NH and central MA Wednesday afternoon, otherwise we’re basically free of rain threats for this forecast period. Initially, temperatures are held back a bit by the center of high pressure being to our north, but with time, it sinks southward and a warm-up becomes more noticeable.

TODAY: Sun filtered to dimmed by high clouds and high altitude smoke. Highs 78-85, cooler coastal areas. Dew point 60+. Wind N to E up to 10 MPH.

TONIGHT: Lots of high clouds and additional smoke aloft. Patchy ground fog late. Lows 61-68. Dew point 60+. Wind NE to variable under 10 MPH.

WEDNESDAY: Limited sun with high clouds but smoke aloft thins out. Developing convective clouds afternoon with isolated showers and thunderstorms possible in the hills of southwestern NH and central MA. Highs 76-83, cooler coastal areas. Dew point 60+. Wind E up to 10 MPH.

WEDNESDAY NIGHT: Partly cloudy. Patchy fog / low clouds. Lows 61-68. Dew point near 60+. Wind E to variable under 10 MPH.

THURSDAY: Mostly sunny to partly cloudy. Highs 78-85, cooler some coastal areas. Dew point 60+. Wind variable up to 10 MPH with coastal sea breezes.

THURSDAY NIGHT: Mostly clear. Patchy fog. Lows 61-68. Dew point 60+. Wind variable up to 10 MPH.

FRIDAY: Mostly sunny. Highs 80-87, cooler some coastal areas. Dew point 60+. Wind variable up to 10 MPH with coastal sea breezes.

FRIDAY NIGHT: Mostly clear. Patchy fog. Lows 61-68. Dew point 60+. Wind S up to 10 MPH.

SATURDAY: Mostly sunny. Highs 81-88, cooler Cape Cod / South Coast. Dew point near 60+. Wind S up to 10 MPH.

DAYS 6-10 (AUGUST 10-14)

High pressure east of New England allows a more established but weak southerly air flow, while low pressure well to the south should stay there. This pattern allows for warm to hot weather with a slightly increased chance of pop-up showers and thunderstorms, which can be enhanced if a disturbance makes it our way from the west (may happen later period).

DAYS 11-15 (AUGUST 15-19)

No significant changes to the pattern establishing in the previous period. Overall pattern features high pressure off the East coast, promoting warmer, more humid weather with a slightly increased chance of showers and thunderstorms with more moisture moving up from the south, potentially enhanced by any disturbances moving through from the west.

DAYS 1-5 (AUGUST 4-8)

First, a little on current weather at sunrise this Monday morning. Across the WHW forecast area, the cool spot is Martha’s Vineyard at 46 – the only reporting station in the region under 50. The next-coolest is New Bedford at 52. Everywhere else it ranges from 53 to about 60. Why is this the case? High pressure is centered right over the South Coast region, with calm wind. The further north you go, you are further away from the calm center, and there is a light southwesterly wind keeping the air more mixed, and the temperature up a little compared to the calm locations. This is a short-lived but fascinating fair weather phenomenon to start your week. Canadian wildfire smoke is again a significant player in our current and upcoming weather, with a significant smoke plume aloft currently, and set to last for a couple more days, though showing a gradual thinning trend. Today, there will be some pockets of smoke closer to or at the surface too, reducing horizontal visibility and impacting air quality. Later this week, the plume will depart, but we may not be done with such smoke this summer. Meanwhile, our weather will be dominated by high pressure all week – first, one to the south which makes today the warmest day of the week, and second, a new high from Canada which provides a slight cool-down toward midweek, before that one itself sinks more to the south and east overhead then south of here, allowing a slight warm-up to return later in the week. Other than a few pop up showers or thunderstorms potentially occurring in the hills of southwestern NH and central MA Wednesday afternoon, we are looking at dry weather through the next 5 days. Elsewhere, the tropics are a little more active, but outside the MDR. TS Dexter formed last night from an old non-tropical low off the US Southeast Coast, but will move harmlessly out to sea. A second system is being watched for development later this week, but for the time being is no immediate threat or player in our weather.

TODAY: Smoke-filtered sun. Highs 82-89, except 75-82 South Coast. Dew point climbs toward 60. Wind SW up to 10 MPH.

TONIGHT: Star and moon dimming smoke aloft in an otherwise cloud-free sky. Valley, swamp, and bog fog patches. Lows 61-68. Dew point near 60. Wind SW to variable under 10 MPH.

TUESDAY: Smoke-filtered sun but some fair-weather clouds popping up too. Highs 78-85, coolest coastal areas. Dew point near 60. Wind N to E up to 10 MPH.

TUESDAY NIGHT: Partly cloudy. Additional smoke aloft. Lows 61-68. Dew point near 60. Wind NE to variable under 10 MPH.

WEDNESDAY: A sun/cloud mix. Smoke aloft thins gradually from east to west. Isolated showers and thunderstorms possible in the afternoon in the hills of southwestern NH and central MA.

WEDNESDAY NIGHT: Partly cloudy. Lows 61-68. Dew point near 60. Wind E to variable up to 10 MPH.

THURSDAY: Mostly sunny to partly cloudy. Highs 80-87, cooler some coastal areas. Dew point near 60. Wind variable up to 10 MPH with coastal sea breezes.

THURSDAY NIGHT: Mostly clear. Lows 61-68. Dew point near 60. Wind variable up to 10 MPH.

FRIDAY: Mostly sunny. Highs 81-88, cooler some coastal areas. Dew point near 60. Wind variable up to 10 MPH with coastal sea breezes.

DAYS 6-10 (AUGUST 9-13)

High pressure shifts into the western Atlantic and a more southerly air flow gradually develops. Fair weather should hold through the August 9-10 weekend. A better chance at the development of some showers and thunderstorms beginning early next week. Humidity and heat gradually increases, but not to extreme levels.

DAYS 11-15 (AUGUST 14-18)

Overall pattern features high pressure off the East coast, promoting warmer, more humid weather with a slightly increased chance of showers and thunderstorms with more moisture moving up from the south, potentially enhanced by any disturbances moving through from the west.

DAYS 1-5 (AUGUST 3-7)

Easy Sunday update today – basically no changes in yesterday’s update, save for one minor tweak for midweek. High pressure remains dominant through this period, with one frontal boundary to watch sinking down from the north Wednesday. The only change would be to introduce the chance for an inland pop-up shower or storm chance that day favoring southwestern NH and north central MA. Otherwise it’s fair weather, humidity that remains low for a couple days then gradual increases to moderate, and a slow warming trend through Tuesday, a small cool-down Wednesday, and small warm-up Thursday, with several days cooler at the coast. Additionally, you’ll notice a hazy look to the sky at times the next several days as additional areas of high altitude smoke move through the sky from Canada’s fires.

TODAY: Sunny. Highs 77-84. Dew point sub-60. Wind variable up to 10 MPH with weaker coastal sea breezes, may shift to W by late-day.

TONIGHT: Mostly clear. Patchy fog. Lows 60-67. Dew point nearing 60. Wind variable under 10 MPH.

MONDAY: Mostly sunny. Highs 80-87. Dew point near 60. Wind W 5-15 MPH.

MONDAY NIGHT: Mostly clear. Patchy fog. Lows 61-68. Dew point near 60. Wind W under 10 MPH.

TUESDAY: Mostly sunny. Highs 81-88, except cooler South Coast. Dew point near 60. Wind SW up to 10 MPH.

TUESDAY NIGHT: Partly cloudy. Lows 62-69. Dew point near 60. Wind W up to 10 MPH shifting to N.

WEDNESDAY: Partly sunny. Highs 76-83, coolest coastal areas. Dew point near 60. Wind N shifting to E up to 10 MPH.

WEDNESDAY NIGHT: Partly cloudy. Lows 61-68. Dew point near 60. Wind E to variable up to 10 MPH.

THURSDAY: Mostly sunny. Highs 80-87, cooler some coastal areas. Dew point near 60. Wind variable up to 10 MPH with coastal sea breezes.

DAYS 6-10 (AUGUST 8-12)

High pressure shifts into the western Atlantic and a more southerly air flow gradually develops. Fair weather is likely the first couple days of this period, before there is a slightly better opportunity for some showers to pop up. Humidity gradually increases, but no major heat is expected.

DAYS 11-15 (AUGUST 13-17)

Overall pattern features high pressure off the East coast, promoting warmer, more humid weather with a slightly increased chance of showers and thunderstorms with more moisture moving up from the south, potentially enhanced by any disturbances moving through from the west.

DAYS 1-5 (AUGUST 2-6)

High pressure will dominate our weather into the middle of next week. Temperatures will be determined by wind direction, related to the position of of the high pressure center, which will be generally overhead today, with a cool morning and a cooler coast than inland region during the afternoon. Sunday and Monday will trend warmer as the high center sinks southward. Tuesday and Wednesday we’ll have a frontal boundary slip down from the north in response to another high pressure area coming from Canada. Isolated shower and thunderstorm later Tuesday and/or Wednesday would most likely occur over the mountains of northern New England with that boundary, north of the WHW forecast area, but the arrival of the air associated with the Canadian high pressure system would take place on a north to northeast wind, meaning that after a warm Tuesday, Wednesday would likely be cooler, especially along the coast.

TODAY: Mostly sunny. Highs 74-81. Dew point upper 40s to lower 50s. Wind N up to 10 MPH with coastal sea breezes developing.

TONIGHT: Mostly clear. Fog patches interior lower elevations. Lows 55-62. Dew point lower to middle 50s. Wind calm.

SUNDAY: Sunny. Highs 77-84. Dew point sub-60. Wind variable up to 10 MPH with weaker coastal sea breezes, may shift to W by late-day.

SUNDAY NIGHT: Mostly clear. Patchy fog. Lows 60-67. Dew point near 60. Wind variable under 10 MPH.

MONDAY: Mostly sunny. Highs 80-87. Dew point near 60. Wind W 5-15 MPH.

MONDAY NIGHT: Mostly clear. Patchy fog. Lows 61-68. Dew point near 60. Wind W under 10 MPH.

TUESDAY: Mostly sunny. Highs 81-88, except cooler South Coast. Dew point near 60. Wind SW up to 10 MPH.

TUESDAY NIGHT: Partly cloudy. Lows 62-69. Dew point near 60. Wind W up to 10 MPH shifting to N.

WEDNESDAY: Partly sunny. Highs 76-83, coolest coastal areas. Dew point near 60. Wind N shifting to E up to 10 MPH.

DAYS 6-10 (AUGUST 7-11)

High pressure shifts into the western Atlantic and a more southerly air flow gradually develops. Fair weather is likely the first few days of this period, before there is a slightly better opportunity for some showers to pop up. Humidity gradually increases, but no major heat is expected.

DAYS 11-15 (AUGUST 12-16)

Overall pattern features high pressure off the East coast, promoting warmer, more humid weather with a slightly increased chance of showers and thunderstorms with more moisture moving up from the south, potentially enhanced by any disturbances moving through from the west.