Seasonably cold and dry into this evening.
High pressure extends up and down the Eastern Seaboard, so expect mostly sunny conditions, temperatures near normal for mid-January and light winds. The High is briefly nudged out of place on Wednesday as an "Alberta Clipper" sends a dry front across southern New England. This promises the mildest day in awhile, though a bit breezy. The High reasserts itself on Thursday, lowering temperatures by 15 degrees.
The start of an unsettled period of weather kicks off on Friday. A weak area of Low pressure looks to develop some snow by dawn, but rain is likely to work its way into eastern MA later in the morning.
The ingredients for a more disruptive winter-storm (especially for the interior) will take shape late Saturday into Sunday. This will not become clear until late-week because the storm has yest to form, with uncertainty in the track. Early indications suggest wind-driven rain to snow.