From the WABI-TV5 & CW Forecast Center:
The ridge of high pressure that has produced the bright and chilly conditions all across Maine the past few days continues to slide southeast and will slip off the New England Coastline tonight. The combination of increasing clouds and a light southerly breeze will keep temperatures much milder tonight than they have been the past two nights. Lows temps tonight will range from the low 20s north to near 30 along the coastline.
On Thanksgiving the high will continue slipping off to the southeast of New England and a southwest breeze on the backside of the high will usher a much milder airmass into our area. High temps on Thanksgiving will run about ten degrees above normal as temps climb into the 40s to near 50 all across Maine despite skies turning partly to mostly cloudy. Friday will be another milder than normal day as a southwest breeze continues to blow across Maine, with temps reaching up into the upper 40s to mid 50s from north to south.
A cold front will bring showers back to New England Friday night and early Saturday as it approaches and then crosses through Maine. A brisk northwest breeze behind the front will usher a colder airmass into Maine for Saturday and Sunday. As the cold front slides to our south any leftover rain showers may briefly change to snow showers late Friday night and early Saturday before ending as the colder air spills into the Northeast. A reinforcing shot of cold air will slide into Northern New England Monday on a gusty northwest breeze as a storm crossing Quebec drags a cold front south through Maine.
Tonight: Mostly clear then partly cloudy, with a light wind and low temps in the 20s to near 30.
Thanksgiving: Variably cloudy and mild, with high temps in the 40s to near 50.
Friday: More clouds than sun, with scattered late showers north and high temps in the upper 40s to mid 50s.
Saturday: Possible early rain and snow showers then partly sunny and breezy, with high temps in the upper 20s north and 30s south.
Sunday: More sun than clouds with high temps in the 30s to near 40.
Monday: Partly sunny and breezy, with high temps in the upper 20s to mid 30s.
WABI-TV5 & CW Meteorologist