From the WABI-TV5 & CW Forecast Center:
A storm system currently sliding east through the Great Lakes Region will cut right across Maine later tomorrow. The storm will bring increasing clouds to our area later tonight after a mostly clear start, with rain overspreading Maine from west to east tomorrow morning. The rain at times tomorrow afternoon may be heavy and by the time the rain tapers off during the late afternoon or evening much of the state will have picked up between .50” And 1.0”. The combination of clouds and rain will hold the temps Friday in the 50s to near 60 from the Lincoln and Dover-Foxcroft Regions on south, but only climb into the 40s up north.
A ridge of high pressure will build southeast from Hudson Bay Friday night as the storm exits from Maine and moves up into the Maritimes of Canada. An active northwest breeze on the eastside of the high will usher a rather cool airmass into Northern New England Saturday as highs across Maine range from the mid 40s north to the mid 50s around the Bangor Region despite a good deal of sunshine. The high will keep the our weather partly sunny Sunday with temps running a bit milder as highs climb into the mid 50s north to lower 60s south.
As the high slips off to our south a southwest breeze will usher milder air into New England for Columbus Day Monday as highs climb into the mid 60s to low 70s throughout Maine under partly sunny skies, which is over ten degrees above normal. An approaching cold front from the west along with a storm lifting north off the Mid-Atlantic Coastline will combine to bring an increased risk of showers to the Pine Tree State later Tuesday into early Wednesday. As the front slips off to our east a shot of somewhat cooler air will filter into New England for the end of the workweek and much of the weekend.
Tonight: Becoming mostly cloudy, with a light wind and low temps in the 30s to near 40.
Friday: Mostly cloudy, with rain developing and high temps in the upper 40s north to 50s south.
Saturday: Partly to mostly sunny and breezy, with high temps in the mid 40s north to mid 50s south.
Sunday: Partly sunny, with high temps in the low 50s to low 60s from north to south.
Monday: Partly sunny and mild, with high temps in the 60s to near 70.
Tuesday: Variably cloudy, with possible scattered showers developing and high temps in the 60s.
WABI-TV5 & CW Meteorologist