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Charlestown, MA - Charles River Entrance Marine Weather Forecast

Station BHBM3 - 8443970 - Boston, MA

December 23, 2025 6:48 am EST
Location: 42.355N 71.05W
Atmospheric Pressure: 30.29 in (1025.6 mb)


Overnight - 30°F
Dec 23, 2025
7 mph W
Mostly Cloudy
Mostly cloudy, with a low around 30. West wind around 7 mph.
Tuesday - 36°F
Dec 23, 2025
3 to 7 mph S
Light Snow
A chance of snow between 8am and noon, then snow and patchy fog. Cloudy, with a high near 36. South wind 3 to 7 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Tuesday Night - 33°F
Dec 23, 2025
6 to 13 mph SW
Light Snow
Snow and patchy fog before 7pm, then patchy fog and rain and snow between 7pm and 1am, then patchy fog and a slight chance of rain and snow between 1am and 5am. Mostly cloudy, with a low around 33. Southwest wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Wednesday - 37°F
Dec 24, 2025
10 to 17 mph NW
Partly Sunny
Partly sunny, with a high near 37. Northwest wind 10 to 17 mph, with gusts as high as 36 mph.
Wednesday Night - 26°F
Dec 24, 2025
6 to 9 mph NW
Mostly Cloudy
Mostly cloudy, with a low around 26. Northwest wind 6 to 9 mph.
Christmas Day - 37°F
Dec 25, 2025
7 to 12 mph W
Mostly Cloudy
Mostly cloudy, with a high near 37. West wind 7 to 12 mph.
Thursday Night - 17°F
Dec 25, 2025
14 mph NW
Partly Cloudy
Partly cloudy, with a low around 17. Northwest wind around 14 mph.
Friday - 24°F
Dec 26, 2025
7 to 13 mph N
Partly Sunny then Slight Chance Light Snow
A slight chance of snow after 3pm. Partly sunny, with a high near 24. North wind 7 to 13 mph.
Friday Night - 22°F
Dec 26, 2025
6 to 9 mph N
Light Snow Likely
Snow likely. Cloudy, with a low around 22. North wind 6 to 9 mph. Chance of precipitation is 60%.
Saturday - 30°F
Dec 27, 2025
9 mph NE
Chance Light Snow
A chance of snow. Mostly cloudy, with a high near 30. Northeast wind around 9 mph. Chance of precipitation is 50%.
Saturday Night - 28°F
Dec 27, 2025
7 mph N
Chance Light Snow
A chance of snow. Mostly cloudy, with a low around 28. North wind around 7 mph. Chance of precipitation is 40%.
Sunday - 39°F
Dec 28, 2025
7 to 10 mph S
Chance Light Snow then Rain And Snow Likely
A chance of snow before 8am, then rain and snow likely. Cloudy, with a high near 39. South wind 7 to 10 mph. Chance of precipitation is 70%.
Sunday Night - 26°F
Dec 28, 2025
10 to 15 mph W
Light Rain Likely then Chance Light Snow
Rain likely before 4am, then a chance of snow. Mostly cloudy, with a low around 26. West wind 10 to 15 mph. Chance of precipitation is 70%.
Monday - 30°F
Dec 29, 2025
17 mph W
Chance Light Snow
A chance of snow. Partly sunny, with a high near 30. West wind around 17 mph.

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