A cold front is dropping our temperatures to the 40 on Sunday morning. Temperatures dropped a bit more during sunrise with the colder and drier air rushing in from the NW. It will be a northwest flow that will gust late Sunday, bringing temperatures down to the 30s! Snow potential in the Northeast Kingdom in Vermont tomorrow that will spread into the crown of Maine.
The wind chill for Sunday afternoon will hover in the 30s in Worcester and mid 40s in Boston through the Merrimack Valley. The Monadnock region will feel in the low 40s by 3pm Sunday and those temperatures will drop even lower Sunday night. Sunday night brings wind chills in the 20s from Keen, NH to Brattleboro, VT. Springfield, MA will see drier air and colder temperatures by Monday morning.
Monday keeps highs in the 40s through the day and that will remain through Tuesday as a high pressure system anchors in. That pattern, however, will be disrupted as a coastal low crawls in on Wednesday. This moisture along with cold temperatures will allow to brings the ingredients together for potential first snow of the season in the western Berkshires into the White and Green Mountains.
While Boston will receive rain, the wind and snow allow for a First Alert as a wintry mix may fall just outside I-495 impacting roads in the early commute for communities in Worcester County to the Monadnock Region.
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Some flakes may linger into the Merrimack valley, but will likely be replaced by rain as more warm air is advected. The snow, however, may accumulate up to 6” in the mountains.