Massachusetts – Pale December sunlight reflects off rooftops and harbor water this morning as winter officially begins on a calm note. The air feels crisp but manageable, and dry pavement offers an easy start for early errands and travel.
Highs reach the mid-40s today under sunny skies, helped by gusty southwest winds. Tonight turns sharply colder, with temperatures slipping into the low 20s. Clear skies allow surfaces to cool fast, so watch for frost forming on bridges and shaded roads.
Monday stays dry but colder. Sunshine fades behind increasing clouds by late day, and highs stall in the mid-30s. Conditions remain favorable for travel through the afternoon, but a shift begins after dark.
By late Monday night, light snow becomes possible across eastern Massachusetts. Accumulation looks minor, but even a dusting could create slick stretches on I-93, Route 128, and city side streets. Temperatures hover near freezing, increasing the risk of brief icing.
Tuesday brings the most active weather. Snow likely mixes with rain during the morning, then trends wetter through midday. Highs approach the upper 30s. Slushy conditions may develop early before roads turn wet. Commuters should plan extra time and expect reduced visibility during heavier bursts.
Tuesday night remains unsettled. Rain continues, with a chance of snow lingering early before colder air nudges back in. Any standing water could refreeze toward morning, especially inland.
Midweek improves for Christmas travel. Wednesday turns mostly sunny and breezy, with highs near 37. Christmas Day stays partly sunny and seasonable, topping out near 39. Travel conditions look quieter, though cold mornings persist.
For now, winter opens gently. Keep layers ready, monitor Tuesday’s changeover timing, and stay alert for flash freezing after precipitation ends. Weather patterns remain active nearby. Traveling this week? Tell us what conditions look like in your neighborhood.
Five-Day Outlook for Boston, Massachusetts
Today: Sunny, breezy, high 44.
Monday: Sunny, colder, high 34.
Tuesday: Snow then rain, high 38.
Wednesday: Mostly sunny, high 37.
Christmas Day: Partly sunny, high 39.
