From meteorologist Shiri Spear:
It's going to turn bitterly cold Saturday night into Sunday.
As an arctic cold front makes its way through southern New England flurries and perhaps and isolated snow squall are possible this evening and overnight. Accumulation will not affect most communities. A patchy coating (trace to less than an inch) is expected. The best chance tonight at elevations and tomorrow for the Cape & Islands.
Wind is going to impact all outdoor plans Sunday. Sustained W/NW winds 15-25 mph with gusts up to 40 mph will roar through the region. Therefore, morning lows in the teens and 20s will feel like single digits, and may even land below zero in the hills! Thermometers will head only to the mid and upper 20s inland and lower 30s on the coast and Cape. Blustery and bitterly cold conditions will last all day.
Partly sunny skies will be brightest inland with more clouds across Cape Cod and Nantucket where some snowflakes will occasionally reach the ground. Dew points will drop to near zero so it will be extremely dry. Much of the snow that falls will evaporate on the way down which is why accumulation will be kept to a minimum, if at all.
The Pats game will be raw. Mostly clear conditions will come with a kick off temp around 22 degrees. It will feel like it's 2-10 degrees when you add those winds up to 25 mph. Dress warmly—these conditions can be dangerous if you're not covered up appropriately.
Monday will be breezy, bright and cold with highs near freezing.
Tuesday will bring some light precipitation at times, flurries and sprinkles expected for now. There will be more dry than damp times but the clouds will stay thick. Highs will reach the upper 40s.
The possibility of a storm (or rain/snow mix) remains a likelihood Wednesday. The model solutions are still wide ranging. Although our precipitation TYPE is not certain yet, understand this storm will slow down midweek if you have plans to travel up and down the east coast.
Thanksgiving will turn mostly sunny and breezy.