High pressure slowly slips out to sea on Sunday, allowing for high clouds to thicken as we travel deeper into the day. Eventually, those clouds will begin producing some light snow, but that won't happen until around midnight. The light snow will linger into Monday morning before ending in the morning. This will be a quick moving, weak system that spreads about 2-4 inches of snow around southwestern Maine, from Portland south through York County. North of this area, 1-3 inches of snow will accumulate.
Skies will try to partially and gradually clear Monday afternoon, making for another cold night Monday night with temperatures in the single digits. Another round of high pressure arrives for Tuesday making for bright sunshine and light winds on Tuesday.
Out next quick moving system arrives Tuesday night with some snow that will mix with some rain toward morning. The coast may change entirely to rain before the precipitation winds down. Additional accumulations are likely. On Wednesday, in the wake of the snow and rain, temperatures should climb into the 40s! But the "warm up" will be short lived as temperatures trend downward for the end of the week.