8:58AM
DAYS 1-5…
First, the weekend: Northeast to east air flow dominates today as high pressure builds to the north of New England. This feature was well-forecast by several of the medium range models for many days in advance. I actually thought it would take place a little further east and we’d have a more southerly flow initially, but during the last few days it became more apparent that the model forecast were likely to be correct. Anyway, the result of this correct model forecast is lots of low cloudiness for parts of southeastern NH and eastern MA especially this morning, trying but failing to completely make it onto Cape Cod and into RI, but also breaking up by midday for at least partial sun where the day started with a low overcast. During this time, above all of this there will be some increasing high and mid level cloudiness from the west northwest as a warm front begins its approach. This warm front closes in tonight as clouds thicken and eventually showers arrive overnight. The front will push eastward across the region Sunday morning which may see additional showers and even a few thunderstorms. As we get into the warmer and humid air behind that front, it may not clear all that much as clouds remain dominant, but the rain chances should go down, but not to zero. Any breaks and sunshine could ignite a few isolated to scattered showers/thunderstorms during the afternoon, and an approaching cold front may trigger a few more Sunday night. So while no wash-out, Sunday will be unsettled.
First few days of next week: The cold front that approaches on Sunday night will wash out and dissipate over southeastern New England Monday, but provide just enough focus for the potential of pop up showers and thunderstorms. Also, not looking for a push of dry air with this front, so humidity levels will drop only slightly at best. As this is taking place, upper level high pressure will be building across the East Coast of the US and finally allow a stretch of hot weather to get underway in southern New England Tuesday and into midweek…
TODAY: Variably cloudy. Highs in the 70s, coolest at the beaches. Wind NE to E 5-15 MPH.
TONIGHT: Mostly cloudy. Showers develop west to east late at night. More humid. Lows in the 60s. Wind SE to S 5-15 MPH.
SUNDAY: Mostly cloudy to partly sunny. Showers likely and a slight chance of thunderstorms early through mid morning. Isolated showers and thunderstorms possible in the afternoon. Humid. Highs in the 70s, a few lower 80s possible interior with any sun. Wind S 5-15 MPH.
MONDAY: Partly sunny. Isolated showers/thunderstorms. Lows in the 60s. Highs 78-85.
TUESDAY: Mostly sunny. Lows 65-72. Highs 86-93.
WEDNESDAY: Hazy sun. Lows 67-74. Highs 88-95.
DAYS 6-10 (JULY 30-AUGUST 3)…
HHH weather Thursday July 30 with a chance of thunderstorms late day or nighttime with a cold front. Return to fair, less humid, but very warm Friday July 31 and Saturday August 1. HHH again Sunday August 2 with a risk of showers/thunderstorms. Fair and warm Monday August 3.
DAYS 11-15 (AUGUST 4-8)…
Pattern favors showers/thunderstorms very early in the period then mostly fair weather returning. Temperatures near to above normal.