DAYS 1-5 (NOVEMBER 20-24)
It’s a holiday week and there are a lot of plans dependent on the weather. For the most part, I don’t see weather being a big factor in most plans. High pressure to our northwest delivers a chilly northerly breeze but fair weather today. The high moves over the region tonight and it will be a clear, cold one. Tuesday, as the high starts to give way to approaching low pressure, high clouds will fan across the sky, limiting and dimming the sun often, but they may struggle to thicken as they battle dry air up there at first. Eventually, they win the battle and it turns overcast in the evening. Low pressure will make a run from the eastern Great Lakes to the St. Lawrence Valley Wednesday but quickly redevelop in the Delmarva region and track across southern New England. This brings wet weather to our region with the bulk of the precipitation from this system falling in the first 12 hours of Wednesday and in the form of rain, but the first several hours of the precipitation will probably fall as at least mix and probably snow in the higher elevations of southwestern NH and north central MA where some accumulation is likely – currently thinking a solid coating to 2 inches. Any accumulation will wash away / melt away during the day Wednesday. Drier air arrives later Wednesday with breaking clouds and eventual clearing, first to the west, lastly near the coast. The delivery of cold air behind that system is not particularly strong, so while Thanksgiving Day is likely to be breezy and cool, outside of a gusty breeze it won’t be that bad for outdoor activities (morning races, football games).
TODAY: Mostly sunny. Highs 38-45. Wind NW 5-15 MPH.
TONIGHT: Clear. Lows 18-25. Wind N under 10 MPH.
TUESDAY: Sunshine followed by increasing high clouds. Highs 42-49. Wind variable under 10 MPH.
TUESDAY NIGHT: Thickening overcast. Rain arrives overnight but may start as snow over interior higher elevations with a coating to as much as 2 inches possible in higher elevations of southwestern NH and north central MA by dawn. Lows 32-39. Wind variable up to 10 MPH evening becoming SE.
WEDNESDAY: Overcast with rain likely through midday. Breaking clouds in the afternoon from west to east. Highs 46-53. Wind SE 5-15 MPH with higher gusts, becoming variable for a while, then NW 15-25 MPH with higher gusts later in the day.
WEDNESDAY NIGHT: Partly cloudy. Lows 32-39. Wind W 10-20 MPH, gusty.
THURSDAY: Partly cloudy. Highs 44-51. Wind W 10-20 MPH, gusty.
THURSDAY NIGHT: Mostly cloudy. Lows 31-38. Wind W 5-15 MPH.
FRIDAY: Mostly cloudy. Highs 43-50. Wind W up to 10 MPH.
DAYS 6-10 (NOVEMBER 25-29)
The balance of Thanksgiving Weekend looks dry as low pressure is kept south of the region and high pressure holds its control. Low pressure does move through bringing a chance of rain (maybe brief higher elevation mix) on November 27 before another period of dry weather follows that into the middle of next week.
DAYS 11-15 (NOVEMBER 30 – DECEMBER 4)
Overall pattern continues to look on the dry and chilly side heading from the final day of November through the first few days of December. There may be a quick moving trough / low to contend with somewhere early to mid period.