From the WABI-TV5 & CW Forecast Center:
The combination of high pressure to our east and a storm crossing southeastern Canada will bring a southwest breeze into our region Saturday. The southwest breeze will bring both a milder airmass and some moisture into New England for the first part of the weekend. The storm sliding east through southeastern Canada will pull a warm front across Maine tonight and early Saturday, which will be followed by the storms trailing cold front later in the afternoon and evening. The two fronts will produce periods of light precipitation across our region later tonight and much of the daylight hours on Saturday, with the steadiest precipitation falling across the northern parts of Maine. Southern and central Maine will see snow showers change to light rain showers Saturday as the temps climb to near 40 degrees later in the day, while northern parts of the state see the bulk of the precipitation fall as wet snow, with 1 to 3” accumulating from the Greenville and Millinocket regions on north.
The storms trailing cold front will bring an end to the rain and snow showers later Saturday afternoon or evening as the front slips off to our east. As the wind shifts into the northwest behind the cold front a fresh batch of arctic air will build into the Northeast for Sunday, Monday and Tuesday, with temps once again running well below normal despite a good deal of sunshine each day. A storm will likely approach New England later Wednesday with a mixed bag of precipitation possible here for later in the day and night.
Tonight: Becoming cloudy, with scattered snow showers developing, especially north and low temps in the 20s, but slowly rising late.
Saturday: Mostly cloudy, scattered rain and snow showers, with high temps in the upper 30s to low 40s.
Sunday: Mostly sunny, breezy and colder, with high temps in the upper teens and 20s.
Monday: Mostly sunny, with highs in the mid teens to mid 20s.
Tuesday: Mostly to partly sunny and still cold, with high temps in the 20s to near 30.
Wednesday: Increasing clouds, with possible snow and rain developing and high temps in the 30s.
WABI-TV5 & CW Meteorologist