From the WABI-TV5 & CW Forecast Center:
The ridge of high pressure that has been producing the sunny and milder than normal weather across New England all workweek long will continue to slowly move east off the Mid-Atlantic Coastline. The high will still control the conditions across Maine Saturday as skies average partly sunny. A southerly breeze on the backside of the high will keep temps along the coastline cooler than inland locals Saturday.
After a partly sunny Saturday the clouds ahead of a cold front will begin to increase across our region Saturday night. The cold front will produce a period of rain throughout New England as it slowly works east, with the bulk of the rainfall in Maine falling during the afternoon and evening hours of Sunday. Showers will taper off and the skies will partially clear across Maine late Sunday night as the cold front slips off to our east.
An upper level trough crossing southern Quebec may bring a few showers to far northern parts of Maine Monday, otherwise high pressure centered north of the Great Lakes Region Sunday will approach our region early in the workweek and bring cooler and drier air back into New England both Monday and Tuesday. The high will build right over the Northeast Wednesday and that should cause temps to once again warm to above normal levels under mostly sunny skies.
Saturday: Patchy early fog then partly sunny, with high temps in the mid 60s to low 70s. Breezy.
Saturday night: Becoming mostly cloudy, with patchy fog and possible showers developing, with low temps in the mid 50s to low 60s.
Sunday: Mostly cloudy and breezy, with periods of showers developing and high temps in the 60s to near 70.
Monday: Partly to mostly sunny south, with a few showers across the north, breezy and cooler, with high temps in the mid 50s to low 60s.
Tuesday: More sun than clouds, with high temps in the mid 50s to mid 60s from north to south.
Wednesday: Mostly sunny, with high temps in the 60s to near 70.
WABI-TV5 & CW Meteorologist