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South Dartmouth, MA Marine Weather Forecast

Overnight - 15°F
Dec 05, 2025
9 mph N
Mostly Clear
Mostly clear, with a low around 15. North wind around 9 mph.
Friday - 34°F
Dec 05, 2025
6 mph W
Sunny
Sunny, with a high near 34. West wind around 6 mph.
Friday Night - 28°F
Dec 05, 2025
5 mph SE
Mostly Cloudy
Mostly cloudy. Low around 28, with temperatures rising to around 34 overnight. Southeast wind around 5 mph.
Saturday - 45°F
Dec 06, 2025
5 to 10 mph S
Slight Chance Light Snow then Chance Light Rain
A slight chance of snow between 7am and 8am, then a chance of rain. Mostly cloudy, with a high near 45. South wind 5 to 10 mph. Chance of precipitation is 30%.
Saturday Night - 29°F
Dec 06, 2025
8 mph W
Slight Chance Light Rain then Partly Cloudy
A slight chance of rain before 8pm. Partly cloudy, with a low around 29. West wind around 8 mph. Chance of precipitation is 20%.
Sunday - 41°F
Dec 07, 2025
7 mph N
Mostly Sunny
Mostly sunny, with a high near 41. North wind around 7 mph.
Sunday Night - 25°F
Dec 07, 2025
5 to 10 mph N
Chance Light Rain then Chance Light Snow
A chance of rain between 7pm and 4am, then a chance of snow. Mostly cloudy, with a low around 25. North wind 5 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than half an inch possible. Little or no ice accumulation expected.
Monday - 34°F
Dec 08, 2025
12 to 16 mph NW
Chance Light Snow then Mostly Sunny
A chance of snow before 11am. Mostly sunny, with a high near 34. Northwest wind 12 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New snow accumulation of less than half an inch possible. Little or no ice accumulation expected.
Monday Night - 17°F
Dec 08, 2025
6 to 13 mph NW
Mostly Clear
Mostly clear, with a low around 17. Northwest wind 6 to 13 mph.
Tuesday - 41°F
Dec 09, 2025
6 to 14 mph W
Mostly Sunny then Slight Chance Light Rain
A slight chance of rain after 4pm. Mostly sunny, with a high near 41. West wind 6 to 14 mph.
Tuesday Night - 33°F
Dec 09, 2025
9 to 13 mph SW
Chance Light Rain
A chance of rain before 4am. Mostly cloudy, with a low around 33. Southwest wind 9 to 13 mph. Chance of precipitation is 40%.
Wednesday - 50°F
Dec 10, 2025
9 to 13 mph SW
Mostly Cloudy then Chance Light Rain
A chance of rain after noon. Mostly cloudy, with a high near 50. Southwest wind 9 to 13 mph. Chance of precipitation is 30%.
Wednesday Night - 39°F
Dec 10, 2025
12 mph SW
Light Rain Likely
Rain likely. Cloudy, with a low around 39. Southwest wind around 12 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Thursday - 47°F
Dec 11, 2025
14 mph W
Chance Light Rain
A chance of rain. Mostly cloudy, with a high near 47. West wind around 14 mph.

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