From the WABI-TV5 & CW Forecast Center:
Arctic high pressure building into the Northeast will help usher a fresh batch of cold air into New England from the Hudson Bay region of Canada. The high will produce partly to mostly sunny skies across the Pine Tree State both today and Wednesday, but temps will run several degrees below normal both days. High temps today and Wednesday will range from the upper single numbers up north to the teens to low 20s elsewhere across Maine.
Energy aloft crossing the central part of the country will help develop a new storm over the Gulf of Mexico later today into early Wednesday. This new storm will then intensify as it begins to move northeast along the Eastern Seaboard. The storm will bring increasing clouds to our region early Thursday, with precipitation likely developing here as the day moves along. The precipitation will likely become heavy at times later Thursday evening into Friday morning, with a gusty wind developing as well. The exact track of the storm will determine both precipitation types and amounts. At this time it appears the storm will likely move just to the east of the Maine Coastline Thursday night and Friday morning. This track would keep the bulk of the precipitation falling as snow over interior Maine, while closer to the coastline a mixed bag of snow, rain and sleet might occur. A storm track to the west of the current projections would bring more of a snow rain mix even inland, while a track more to the east would hold the cold air in all across the state causing mostly snow to fall even near the coastline.
High pressure will briefly build into the Northeast later Friday and bring some partial clearing to our area. The next in a series of disturbances aloft will likely cross the Northeast later Saturday. The new storm aloft, will likely bring some snow showers or possibly some steadier snow to Maine later Saturday into early Sunday. Temps will turn colder Sunday, with the cold weather continuing both Monday and Tuesday.
Today: Partly to mostly sunny, with high temps in the upper single numbers and teens.
Wednesday: More sun than clouds, with high temps in the teens and low 20s.
Thursday: Thickening clouds, with snow and mixed precipitation likely developing and high temps in the upper 20s to mid 30s.
Friday: Early snow and mix ending, with high temps in the mid 20s to mid 30s from north to south.
Saturday: Thickening clouds, with possible snow developing and high temps in the 20s to low 30s.
WABI-TV5 & CW Meteorologist