From the WABI-TV5 & CW Forecast Center:
The ridge of high pressure that brought the bright, blustery and chilly weather to Maine today will slide east from the Great Lakes Region and sit right on top of New England later tonight. As the high approaches our region the wind will diminish and that along with clear skies will lead to radiational cooling as temps fall into the teens to near 20 by daybreak tomorrow, with a few of the valleys up north even falling into the upper single numbers. A light southerly breeze will develop here tomorrow as the high begins to drift off to our east. High temps tomorrow will range from the mid 30s to mid 40s from north to south across Maine.
A storm early Friday over the Great lakes region will swing northeast through Ontario and into Quebec later Friday afternoon and night. As the storm passes to our north its trailing cold front will swing through New England Friday night and early Saturday and produce a round of scattered rain and snow showers here. A brisk northwest breeze will develop behind the cold front Saturday and colder air will begin to push back into the Pine Tree State. An arctic front will cross the Northeast later Saturday night and Sunday morning. The front along with a disturbance aloft may kick off a round of scattered snow showers and snow squalls here as they cross the region and then the coldest air of the fall season so far will invade New England Sunday and Monday on a brisk northwest breeze.
Tonight: Mostly clear, diminishing wind and cold, with low temps in the teens to near 20.
Thursday: Mostly to partly sunny, with high temps in the upper 30s to mid 40s.
Friday: Partly to mostly cloudy, with high temps in the upper 30s to mid 40s.
Saturday: Any early snow and rain showers ending, then partly cloudy, breezy and turning cooler, with high temps in the 30s to low 40s.
Sunday: Variably cloudy, scattered snow showers, blustery and cold, with high temps in the 20s to low 30s.
Monday: Partly sunny, breezy and cold, with high temps in the 20s to low 30s.
WABI-TV5 & CW Meteorologist