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Cambridge, MA Marine Weather Forecast

Station BHBM3 - 8443970 - Boston, MA

December 20, 2025 6:48 pm EST
Location: 42.355N 71.05W
Atmospheric Pressure: 30.12 in (1019.9 mb)


This Afternoon - 38°F
Dec 20, 2025
10 mph SW
Partly Sunny
Partly sunny, with a high near 38. Southwest wind around 10 mph.
Tonight - 34°F
Dec 20, 2025
9 to 20 mph SW
Mostly Cloudy
Mostly cloudy. Low around 34, with temperatures rising to around 40 overnight. Southwest wind 9 to 20 mph, with gusts as high as 30 mph.
Sunday - 44°F
Dec 21, 2025
15 to 18 mph W
Mostly Sunny
Mostly sunny. High near 44, with temperatures falling to around 36 in the afternoon. West wind 15 to 18 mph.
Sunday Night - 25°F
Dec 21, 2025
17 mph W
Partly Cloudy
Partly cloudy, with a low around 25. West wind around 17 mph, with gusts as high as 28 mph.
Monday - 33°F
Dec 22, 2025
10 to 17 mph W
Sunny
Sunny, with a high near 33. West wind 10 to 17 mph, with gusts as high as 28 mph.
Monday Night - 28°F
Dec 22, 2025
9 mph W
Mostly Cloudy then Chance Light Snow
A chance of snow after 4am. Mostly cloudy, with a low around 28. West wind around 9 mph. Chance of precipitation is 30%.
Tuesday - 38°F
Dec 23, 2025
7 to 10 mph S
Light Snow
Snow before 4pm, then rain likely. Cloudy, with a high near 38. South wind 7 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night - 32°F
Dec 23, 2025
10 to 15 mph W
Chance Light Snow then Chance Rain And Snow Showers
A chance of snow before 7pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 32. West wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 50%.
Wednesday - 35°F
Dec 24, 2025
10 to 16 mph NW
Slight Chance Snow Showers then Sunny
A slight chance of snow showers before 7am. Sunny, with a high near 35. Northwest wind 10 to 16 mph, with gusts as high as 28 mph.
Wednesday Night - 27°F
Dec 24, 2025
6 to 9 mph W
Partly Cloudy
Partly cloudy, with a low around 27. West wind 6 to 9 mph.
Christmas Day - 39°F
Dec 25, 2025
8 mph SW
Mostly Cloudy
Mostly cloudy, with a high near 39. Southwest wind around 8 mph.
Thursday Night - 33°F
Dec 25, 2025
8 mph SW
Chance Light Rain
A chance of rain after 7pm. Mostly cloudy, with a low around 33. Southwest wind around 8 mph. Chance of precipitation is 50%.
Friday - 41°F
Dec 26, 2025
8 to 12 mph W
Chance Light Rain
A chance of rain. Partly sunny, with a high near 41. West wind 8 to 12 mph. Chance of precipitation is 50%.
Friday Night - 30°F
Dec 26, 2025
10 mph NW
Slight Chance Light Rain then Mostly Cloudy
A slight chance of rain before 10pm. Mostly cloudy, with a low around 30. Northwest wind around 10 mph.

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