DAYS 1-5 (JULY 27-31)<\/p>\n\n\n\n
Some up and down temperatures and weather as we head through the final 5 days of July, but if you are on vacation this week, overall it’s a pretty decent week, which started out yesterday with smokey sunshine, a bit of heat, but manageable humidity. As high pressure sits offshore today the humidity will up-tick as the temperatures stay quite warm, but a cold front moving this way is set to bring a significant change. If you have outdoor plans, such as the beach, today turns out quite decent as most of the cloud cover and the shower \/ t-storm threat holds off until the end of the day and especially this evening. The thicker plume of wildfire smoke (from Canada and the western US) has moved on and we are left with some thinner smoke today, and then the plume will be pushed south of the region by tomorrow. We may see it come back marginally at times later this week, but not to the extent we had it yesterday. We will probably see two rounds of showers and thunderstorms, one with a pre-frontal trough, with activity concentrated mostly north of I-90, but some still possible to the south, and another round with the actual cold front, a little more spread out along the boundary as showers with embedded thunderstorms a little bit later in the evening. If there are going to be severe thunderstorms, they will most likely occur with the first batch, favoring areas north of I-90 in the 6PM to 9PM window, with damaging wind gusts as the main threat. The cold front will still be crossing southeastern MA and RI when we get to Wednesday morning so the day may start with a lot of clouds and a few showers around, especially in those locations, but during the day we end up with a fair amount of sunshine taking over on a drier and cooler north to northeast air flow, as high pressure moves toward the region from Canada. This high slips right across the area Wednesday night, which will be tranquil with a lighter wind and pleasantly cool mid summer air, but watch for some fog to form over inland locations at lower elevations where the temperature can easily fall to match the dew point, even with the dew points being down somewhat. I’ve been talking about Thursday as a day with an unsettled weather threat, and that is still the case, but as it stands now the warm front that comes along first doesn’t look like it will have a lot of support for activity, so just expecting a varying amount of cloudiness but a generally rain-free daytime, with most of the shower and potential thunderstorm activity holding off until evening or night with an approaching and passing cold front. The humidity will come back up a bit during Thursday as the warm front leads an air mass into the region from the southwest but behind the cold front comes another shot of drier air for Friday. With some upper level energy set to cross the region on Friday I can’t rule out some pop up showers or thunderstorms, but they should be generally isolated. A small area of high pressure is expected to bring nice weather to the region for the final day of July on Saturday.<\/p>\n\n\n\n
TODAY: Lots of sun filtered by smoke into afternoon giving way to more clouds later in the day. A shower or thunderstorm possible mainly southwestern NH and central MA by late afternoon. Highs 81-88 except cooler South Coast especially Cape Cod. Dew point rising through 60s. Wind SW 5-15 MPH.<\/p>\n\n\n\n
TONIGHT: Mostly cloudy. A couple rounds of showers and thunderstorms, most widespread north of I-90 and more scattered to the south. Patchy fog overnight. Lows 62-69. Dew point falling slowly through 60s. Wind SW to variable 5-15 MPH shifting to N overnight.<\/p>\n\n\n\n
WEDNESDAY: Lots of clouds and a chance of showers southeastern MA and RI until mid morning, otherwise partly to mostly sunny. Highs 72-79. Dew point near 60 then falling through 50s. Wind N to NE 5-15 MPH.<\/p>\n\n\n\n
WEDNESDAY NIGHT: Clear evening. Partly cloudy overnight. Patchy ground fog forming late. Lows 55-62. Dew point near 50 then rising through 50s. Wind variable under 10 MPH.<\/p>\n\n\n\n
THURSDAY: Variably cloudy. Only a slight chance of a passing shower. Highs 76-83. Dew point rising into 60s. Wind S 5-15 MPH.<\/p>\n\n\n\n
THURSDAY NIGHT: Mostly cloudy. Chance of showers\/thunderstorms evening. Patchy fog. Lows 60-67. Dew point falling to near 60. Wind W 5-15 MPH shifting to N.<\/p>\n\n\n\n
FRIDAY: Partly cloudy. Isolated afternoon showers and thunderstorms possible. Highs 76-83. Dew point near 60. Wind NW 5-15 MPH.<\/p>\n\n\n\n
FRIDAY NIGHT: Partly cloudy with a chance of showers early, then clearing. Patchy ground fog forming late. Lows 56-63. Dew point falling to middle 50s. Wind W under 10 MPH.<\/p>\n\n\n\n
SATURDAY: Sunny. Highs 77-84. Dew point upper 50s. Wind W 5-15 MPH.<\/p>\n\n\n\n
DAYS 6-10 (AUGUST 1-5)<\/p>\n\n\n\n
August arrives, typically the month with perhaps the weakest upper level steering on average, and we’ll start it with a continuation of but probably also a weakening of the west to northwest air flow driving the pattern. This does allow seasonal humidity to spike ahead of drier intrusions from Canada. Current timing indicates these disturbances will be passing by about every other day, so we could see shower and thunderstorm threats about August 1, 3, and 5, but with most of the 5-day period being rain-free. Temperatures would be variable but not feature major swings, and would average out to fairly close to normal in this pattern. As always, day-to-day details can’t be determined this far in advance.<\/p>\n\n\n\n
DAYS 11-15 (AUGUST 6-10)<\/p>\n\n\n\n
A weakening of the westerly flow aloft and more high pressure off the US East Coast allows warmth and humidity to become a little more dominant. There will still be a few opportunities for showers and thunderstorms, and we have to watch the boundary between the warm\/humid air and cooler\/dry air in Canada, which for now I think will be mostly to our north. Should it end up further south, we look at going into a wetter pattern, but not expecting this to set up like that at this time.<\/p>\n","protected":false},"excerpt":{"rendered":"
DAYS 1-5 (JULY 27-31) Some up and down temperatures and weather as we head through the final 5 days of July, but if you are on vacation this week, overall it’s a pretty decent week, which started out yesterday with smokey sunshine, a bit of heat, but manageable humidity. As high pressure sits offshore today … Continue reading Tuesday July 27 2021 Forecast (9:17AM)<\/span>