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Cohasset Harbor, MA - (White Head) Marine Weather Forecast

Station 44013 - BOSTON 16 NM East of Boston, MA

December 5, 2025 12:50 am EST
Location: 42.346N 70.651W
Wind Direction: NW (320°)
Wind Speed: 23.3 knots
Wind Gust: 29.2 knots
Significant Wave Height: 5.6 ft
Dominant Wave Period: 4 sec
Average Period: 4.1 sec
Mean Wave Direction: NW (319°)
Atmospheric Pressure: 30.27 in (1025.0 mb)
Air Temperature: 20.8°F (-6.2°C)
Dew Point: 9.9°F (-12.3°C)
Water Temperature: 48.2°F (9.0°C)


This Afternoon - 40°F
Dec 04, 2025
24 mph W
Scattered Snow Showers
Scattered snow showers. Partly sunny, with a high near 40. West wind around 24 mph, with gusts as high as 43 mph.
Tonight - 14°F
Dec 04, 2025
10 to 25 mph NW
Mostly Clear
Mostly clear, with a low around 14. Northwest wind 10 to 25 mph, with gusts as high as 41 mph.
Friday - 29°F
Dec 05, 2025
6 to 10 mph W
Sunny
Sunny, with a high near 29. West wind 6 to 10 mph.
Friday Night - 26°F
Dec 05, 2025
3 to 7 mph SW
Mostly Cloudy then Slight Chance Light Snow
A slight chance of snow after 5am. Mostly cloudy, with a low around 26. Southwest wind 3 to 7 mph. Chance of precipitation is 20%.
Saturday - 41°F
Dec 06, 2025
5 to 8 mph S
Chance Light Snow then Chance Light Rain
A chance of snow before 10am, then a chance of rain. Cloudy, with a high near 41. South wind 5 to 8 mph. Chance of precipitation is 30%.
Saturday Night - 31°F
Dec 06, 2025
10 mph W
Slight Chance Light Rain then Partly Cloudy
A slight chance of rain before 7pm. Partly cloudy, with a low around 31. West wind around 10 mph. Chance of precipitation is 20%.
Sunday - 39°F
Dec 07, 2025
6 to 10 mph NW
Partly Sunny
Partly sunny, with a high near 39. Northwest wind 6 to 10 mph.
Sunday Night - 25°F
Dec 07, 2025
6 to 15 mph W
Chance Rain And Snow
A slight chance of snow between 9pm and midnight, then a chance of rain and snow. Mostly cloudy, with a low around 25. West wind 6 to 15 mph. Chance of precipitation is 30%.
Monday - 31°F
Dec 08, 2025
18 mph NW
Chance Light Snow
A chance of snow before 1pm. Mostly sunny, with a high near 31. Northwest wind around 18 mph. Chance of precipitation is 30%.
Monday Night - 18°F
Dec 08, 2025
12 to 17 mph NW
Mostly Clear
Mostly clear, with a low around 18. Northwest wind 12 to 17 mph.
Tuesday - 36°F
Dec 09, 2025
9 to 13 mph SW
Mostly Sunny then Slight Chance Light Snow
A slight chance of snow after 4pm. Mostly sunny, with a high near 36. Southwest wind 9 to 13 mph.
Tuesday Night - 30°F
Dec 09, 2025
12 mph SW
Chance Light Snow
A chance of snow before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 30. Southwest wind around 12 mph. Chance of precipitation is 50%.
Wednesday - 41°F
Dec 10, 2025
10 mph SW
Slight Chance Light Rain
A slight chance of rain. Mostly cloudy, with a high near 41. Southwest wind around 10 mph.
Wednesday Night - 34°F
Dec 10, 2025
7 to 10 mph SW
Chance Light Rain
A chance of rain. Mostly cloudy, with a low around 34. Southwest wind 7 to 10 mph.

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