Massachusetts wakes to crisp, still air this morning as commuters brace for a fast-developing early-December Weather Alert that could complicate Tuesday travel across Boston and much of southern New England. Light clouds drift over the region now, but meteorologists are tracking a strengthening coastal system that may bring plowable snow, a rain-snow changeover, and slippery roads by Tuesday afternoon.
According to the National Weather Service, temperatures stay mild today, with highs near the upper 40s in Boston. That warmth sets the stage for a sharp drop into Monday night as colder, drier air slides in. The shift matters: a colder surface by early Tuesday boosts the chance for snow, sleet, or a slushy mix that may freeze on bridges and ramps, especially during the evening travel window.
Models still vary on storm track and intensity, but the early signs point to a potential 3–12 inches across interior and higher-elevation areas. Coastal and urban zones, including Boston, could see rain first before a possible changeover to wet snow. That transition may occur fastest north and west of the city, where pavement cools sooner. Plan extra time if traveling Tuesday afternoon or evening; visibility may drop quickly with heavier bursts.
Monday brings sunshine but cooler air, a setup that often signals a “winter tease” this early in December. For now, keep coats, gloves, and traction gear close. Those returning from holiday trips should watch for flash-freeze potential Tuesday night if slushy snow refreezes on untreated surfaces.
Five-Day Outlook
Today: Cloudy, highs near 50.
Monday: Sunny, cool, highs in the mid-40s.
Tuesday: Rain changing to snow; travel impacts likely.
Wednesday: Sunny, brisk, highs in the upper 30s.
Thursday: Partly sunny, seasonable, highs in the lower 40s.
