DAYS 1-5 (OCTOBER 22-26)
High pressure keeps the warm and dry weather going for 2 more days, but a light east to southeast air flow will develop today and a more noticeable south to southwest air flow will become established Wednesday, ahead of an approaching cold front. This front will pass by from west to east in the early hours of Thursday, while at the same time another ocean storm evolves southeast to east of New England. While the front only brings the slight chance of a passing rain shower mainly in southern NH and northern MA early Thursday, the combination of the front and the offshore storm may hold more cloud cover in our region for a longer period of time Thursday, so that day may end up with more limited sun than previously forecast. Friday, high pressure delivers dry, cool weather with more sun. Another cold front crosses the region Saturday, but in the ongoing pattern this front will have little moisture to work with and any rain shower chance is limited. Early call on timing is morning hours Saturday for passage. This will lead an even cooler air mass into the region.
TODAY: Sunny. Highs 68-75, coolest eastern coastal areas. Wind variable to E up to 10 MPH.
TONIGHT: Clear inland, partly cloudy coastal areas. Patchy fog interior valleys. Lows 45-52. Wind S under 10 MPH.
WEDNESDAY: Sun/cloud mix, but most clouds confined to southern coastal areas. Highs 67-74, coolest southern coastal areas. Wind S 5-15 MPH.
WEDNESDAY NIGHT: Variably cloudy. A possible rain shower overnight, favoring areas north of I-90. Lows 52-59. Wind S to SW 5-15 MPH, higher gusts.
THURSDAY: Sun and passing clouds. Highs 58-65. Wind NW 10-20 MPH, gusty.
THURSDAY NIGHT: Mostly clear. Lows 32-39. Wind NW 5-15 MPH with higher gusts in the evening.
FRIDAY: Mostly sunny. Highs 55-62. Wind NW 5-15 MPH shifting to SW and diminishing.
FRIDAY NIGHT: Partly cloudy. Lows 42-49. Wind SW 5-15 MPH.
SATURDAY: Variably cloudy with a chance of a quick-passing rain shower in the morning. Sun and passing clouds afternoon. Highs 53-60. Wind NW 5-15 MPH.
DAYS 6-10 (OCTOBER 27-31)
The dry pattern continues with below normal temperatures to end the weekend on October 27, then a moderating trend early to mid next week as high pressure shifts to the south. Another moisture-starved frontal boundary may bring a brief rain shower threat around the end of the period.
DAYS 11-15 (NOVEMBER 1-5)
November starts with the same pattern October ends with, a westerly flow, a front with limited moisture passing by early in the period. There’s a slight hint that we may have to look to the south for some moisture and a greater rain chance later in the period, but I don’t have a strong feel for this possibility so far in advance.