From the WABI-TV5 & CW Forecast Center:
The upper level low and its associated pool of cold air aloft that moved southeast across Maine today and caused a good deal of fair weather clouds to pop-up will slide off to our east tonight. Clouds will dissipate tonight as the upper level low and its associated pool of cool air aloft departs to our east. With the upper low to our northeast and high pressure centered over southern Ontario slowly approaching New England Saturday the skies will average mostly to partly sunny throughout Maine. The temps will slowly warm this weekend, with highs Saturday reaching the low to mid 70s all across our region. The high will continue to produce mostly sunny skies throughout Maine Sunday, with temps continuing to slowly warm.
The work week will likely start out dry and milder Monday as the high drifts to our south and a southwest breeze develops across our region. The high will only slowly drift east off the Mid-Atlantic Coastline Tuesday and that means New England will likely see another fair and warm day as the southwest breeze continues to usher milder air into our region. A cold front drifting south out of Canada might bring some showers to Maine later Tuesday night or more likely Wednesday.
Tonight: Becoming partly to mostly clear, diminishing wind and cool, with low temps in the low to mid 40s.
Saturday: Partly to mostly sunny, with high temps in the low to mid 70s.
Sunday: More sun than clouds, with high temps in the 70s to near 80.
Monday: Mostly sunny, with high temps in the mid 70s to low 80s.
Tuesday: Partly sunny, with high temps in the mid 70s to low 80s.
Wednesday: Variably cloudy, with scattered showers and storms likely and becoming muggy, with high temps in the 70s.
WABI-TV5 & CW Meteorologist