Massachusetts wakes up under a crisp December sky, with cold air cutting across Boston Harbor. Temperatures sit near 23 degrees, and wind chills dip into the teens. Frost coats cars, rooftops, and sidewalks as commuters step into a sharp winter morning.
Sunshine helps today, but the cold holds firm. Afternoon highs only reach the low 30s, keeping winter firmly in place. Roads remain dry for now, though icy patches may linger in shaded areas and on bridges. Slow down early, especially during the morning commute.
A gradual shift begins Wednesday. Clouds increase and temperatures climb into the mid-40s, signaling a brief break from the cold snap. To be fair, that warmer air opens the door for the next system moving toward New England.
Thursday, December 18th, brings the most impactful weather of the week. Rain develops late in the day and becomes steadier Thursday night. Gusty southerly winds pick up, pushing temperatures into the low 50s before cooling later. Expect slick roads, reduced visibility, and slower travel during the evening commute across Boston and surrounding suburbs.
Rain continues into Friday, with breezy conditions lingering. Highs climb into the upper 50s, but wet pavement and strong wind gusts could create difficult driving conditions, especially on exposed roadways and bridges. Allow extra braking distance and keep headlights on.
Colder air returns Friday night as skies begin to clear. Temperatures drop back into the mid-20s, raising a flash-freeze concern where standing water remains. Watch for refreezing on untreated roads early Saturday.
The weekend turns quieter but seasonable. Saturday stays cool and dry, while Sunday brings slightly milder air ahead of the next system early next week.
Five-Day Outlook for Boston, MA
- Wednesday: Partly sunny, high near 44°
- Thursday: Mostly sunny, rain late, high near 51°
- Friday: Rain and breezy, high near 57°
- Saturday: Mostly cloudy, high near 37°
- Sunday: Partly sunny, high near 44°
