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South Dartmouth, MA Marine Weather Forecast

This Afternoon - 34°F
Dec 27, 2025
9 to 13 mph N
Partly Sunny
Partly sunny. High near 34, with temperatures falling to around 26 in the afternoon. North wind 9 to 13 mph.
Tonight - 18°F
Dec 27, 2025
8 mph NW
Mostly Clear
Mostly clear, with a low around 18. Northwest wind around 8 mph.
Sunday - 40°F
Dec 28, 2025
8 mph W
Mostly Sunny
Mostly sunny, with a high near 40. West wind around 8 mph.
Sunday Night - 32°F
Dec 28, 2025
7 to 10 mph SW
Rain
Rain after 8pm. Mostly cloudy, with a low around 32. Southwest wind 7 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Monday - 49°F
Dec 29, 2025
10 to 15 mph SW
Rain
Rain. Cloudy, with a high near 49. Southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 90%.
Monday Night - 26°F
Dec 29, 2025
14 to 20 mph W
Light Rain Likely
Rain likely before 1am. Partly cloudy, with a low around 26. West wind 14 to 20 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.
Tuesday - 33°F
Dec 30, 2025
18 to 22 mph W
Mostly Sunny
Mostly sunny, with a high near 33. West wind 18 to 22 mph, with gusts as high as 36 mph.
Tuesday Night - 25°F
Dec 30, 2025
14 to 18 mph W
Partly Cloudy
Partly cloudy, with a low around 25. West wind 14 to 18 mph, with gusts as high as 30 mph.
Wednesday - 37°F
Dec 31, 2025
14 to 17 mph W
Mostly Sunny
Mostly sunny, with a high near 37. West wind 14 to 17 mph.
Wednesday Night - 26°F
Dec 31, 2025
14 mph W
Mostly Cloudy then Slight Chance Light Snow
A slight chance of snow after 4am. Mostly cloudy, with a low around 26. West wind around 14 mph, with gusts as high as 24 mph.
New Year's Day - 35°F
Jan 01, 2026
14 mph W
Chance Rain And Snow
A slight chance of snow before 11am, then a chance of rain and snow. Partly sunny, with a high near 35. West wind around 14 mph. Chance of precipitation is 30%.
Thursday Night - 19°F
Jan 01, 2026
12 mph NW
Chance Light Snow
A chance of snow. Mostly cloudy, with a low around 19. Northwest wind around 12 mph. Chance of precipitation is 30%.
Friday - 28°F
Jan 02, 2026
13 mph NW
Mostly Sunny
Mostly sunny, with a high near 28. Northwest wind around 13 mph.
Friday Night - 16°F
Jan 02, 2026
10 mph W
Partly Cloudy
Partly cloudy, with a low around 16. West wind around 10 mph.

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