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Charlestown, MA Marine Weather Forecast

Station BHBM3 - 8443970 - Boston, MA

December 26, 2025 6:48 pm EST
Location: 42.355N 71.05W
Atmospheric Pressure: 30.11 in (1019.6 mb)


This Afternoon - 24°F
Dec 26, 2025
7 mph N
Mostly Cloudy
Mostly cloudy, with a high near 24. North wind around 7 mph.
Tonight - 22°F
Dec 26, 2025
2 to 10 mph N
Light Snow Likely
Snow likely after 8pm. Cloudy, with a low around 22. North wind 2 to 10 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Saturday - 27°F
Dec 27, 2025
7 to 12 mph N
Chance Light Snow then Partly Sunny
A chance of snow before 11am. Partly sunny, with a high near 27. North wind 7 to 12 mph. Chance of precipitation is 40%. New snow accumulation of less than half an inch possible.
Saturday Night - 19°F
Dec 27, 2025
6 mph NW
Mostly Clear
Mostly clear, with a low around 19. Northwest wind around 6 mph.
Sunday - 36°F
Dec 28, 2025
7 mph W
Mostly Sunny
Mostly sunny, with a high near 36. West wind around 7 mph.
Sunday Night - 31°F
Dec 28, 2025
8 mph SW
Light Rain
Rain after 10pm. Cloudy, with a low around 31. Southwest wind around 8 mph. Chance of precipitation is 80%.
Monday - 46°F
Dec 29, 2025
9 to 13 mph S
Light Rain
Rain. Cloudy, with a high near 46. South wind 9 to 13 mph. Chance of precipitation is 100%.
Monday Night - 29°F
Dec 29, 2025
13 to 18 mph SW
Light Rain Likely then Slight Chance Light Snow
Rain likely before 2am, then a slight chance of snow between 2am and 3am. Mostly cloudy, with a low around 29. Southwest wind 13 to 18 mph. Chance of precipitation is 70%.
Tuesday - 31°F
Dec 30, 2025
21 mph W
Partly Sunny
Partly sunny, with a high near 31. West wind around 21 mph.
Tuesday Night - 25°F
Dec 30, 2025
15 to 18 mph W
Mostly Cloudy
Mostly cloudy, with a low around 25. West wind 15 to 18 mph.
Wednesday - 34°F
Dec 31, 2025
15 mph W
Partly Sunny
Partly sunny, with a high near 34. West wind around 15 mph.
Wednesday Night - 24°F
Dec 31, 2025
14 mph W
Mostly Cloudy then Slight Chance Light Snow
A slight chance of snow after 2am. Mostly cloudy, with a low around 24. West wind around 14 mph.
New Year's Day - 30°F
Jan 01, 2026
14 mph W
Slight Chance Light Snow
A slight chance of snow. Mostly sunny, with a high near 30. West wind around 14 mph.
Thursday Night - 17°F
Jan 01, 2026
13 mph W
Slight Chance Light Snow then Partly Cloudy
A slight chance of snow before 9pm. Partly cloudy, with a low around 17. West wind around 13 mph.

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