Boston, MA – Massachusetts is set for a wintry stretch from December 18–24, with NOAA’s long-range outlook showing above-normal precipitation and temperatures ranging from near-normal to slightly below-normal across parts of the state. This combination supports periods of snow, mixed precipitation, and potential travel complications leading into Christmas Eve.
According to NOAA, inland and northern Massachusetts—including Worcester County, the Merrimack Valley, and areas near the New Hampshire border—sit closest to the near-normal to slightly below-normal temperature zone. This favors snowfall for much of the period, with multiple disturbances capable of producing light to moderate accumulations.
Eastern and coastal areas—including Boston, Quincy, Lynn, and Cape Ann—are more likely to see mixing events, especially from December 19–21 when temperatures could rise just above freezing. These setups may produce freezing drizzle or brief icy conditions, particularly during overnight and early morning commute periods.
By December 22–24, colder air is expected to deepen statewide, increasing confidence that most precipitation will fall as snow, especially across interior regions and higher elevations.
The Berkshires, Pioneer Valley, and Worcester Hills may see the most consistent snow chances, with enhanced precipitation along upslope areas.
Across the state, major routes—including I-90 (Mass Pike), I-93, Route 2, and Route 128/95—could experience slick travel, reduced visibility, and intermittent delays, especially as holiday traffic increases December 21 through Christmas Eve.
