Cooler and drier air is overspreading the area as high pressure expands east and south out of the Great Lakes today. A cold front is expected to swing through here on Monday, then another high pressure builds in behind that front bringing more cool and dry weather Tuesday.
This morning we have plenty of clouds around to start the day. Although we may have a decrease in clouds during the morning the trend will be for more clouds to build up through the day as an upper level trough moves through New England. The result, not as much sun today as previously expected. The cool air mass is on top of us and will keep high temperatures between 66 to 70 degrees this afternoon. Clouds break up this evening and a mostly clear sky follows overnight. Lows from near 40 in the usual cooler inland valleys, 42 to 48 most elsewhere and about 53 in Boston. Light northwest winds 5 to 10 mph through tonight, northeast along the coast for a time today.
Sunday will definitely be the pick of the weekend. Abundant sunshine returns and temperatures are expected to be slightly milder, topping out between 70 and 74 in the afternoon. Winds turn more southwest as the high pressure system begins to settle over the mid Atlantic region. Clouds return during Sunday night, lows 49 to 55, coolest inland.
As the high shifts offshore Sunday night a cold front approaches from our northwest. Not a lot of moisture is associated with this front but a few scattered showers may develop mid day Monday, as the front moves through. A couple of showers may linger behind the front through part of the afternoon. It stays relatively cool with highs of 66 to 70, falling back to 40 to 50 overnight, coolest inland, with a partly cloudy sky.
Tuesday will be another Autumn like day with brilliant sunshine and a chilly start to the day. With high pressure moving into the area it remains pleasantly cool and dry with highs of only 64 to 68. Overnight lows 40 inland valleys to about 50 in Boston.