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

Station 44013 - BOSTON 16 NM East of Boston, MA

May 16, 2026 6:40 pm EDT
Location: 42.346N 70.651W
Wind Direction: SSW (200°)
Wind Speed: 15.6 knots
Wind Gust: 17.5 knots
Atmospheric Pressure: 29.88 in (1012.0 mb)
Air Temperature: 62.4°F (16.9°C)
Dew Point: 49.8°F (9.9°C)
Water Temperature: 51.8°F (11.0°C)


Tonight - 56°F
May 16, 2026
12 mph SW
Partly Cloudy
Partly cloudy, with a low around 56. Southwest wind around 12 mph, with gusts as high as 24 mph.
Sunday - 82°F
May 17, 2026
8 mph W
Sunny
Sunny, with a high near 82. West wind around 8 mph.
Sunday Night - 53°F
May 17, 2026
6 mph N
Mostly Clear
Mostly clear, with a low around 53. North wind around 6 mph.
Monday - 69°F
May 18, 2026
3 to 10 mph SE
Mostly Sunny
Mostly sunny, with a high near 69. Southeast wind 3 to 10 mph.
Monday Night - 56°F
May 18, 2026
9 mph S
Mostly Clear
Mostly clear, with a low around 56. South wind around 9 mph.
Tuesday - 85°F
May 19, 2026
8 to 13 mph SW
Sunny
Sunny, with a high near 85. Southwest wind 8 to 13 mph, with gusts as high as 23 mph.
Tuesday Night - 64°F
May 19, 2026
8 to 12 mph SW
Mostly Clear
Mostly clear, with a low around 64. Southwest wind 8 to 12 mph, with gusts as high as 23 mph.
Wednesday - 90°F
May 20, 2026
8 to 13 mph SW
Mostly Sunny then Rain Showers Likely
Rain showers likely after 2pm. Mostly sunny, with a high near 90. Southwest wind 8 to 13 mph. Chance of precipitation is 60%.
Wednesday Night - 55°F
May 20, 2026
7 to 10 mph W
Chance Showers And Thunderstorms
Rain showers likely before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 55. West wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Thursday - 70°F
May 21, 2026
5 to 8 mph N
Slight Chance Rain Showers then Partly Sunny
A slight chance of rain showers before noon. Partly sunny, with a high near 70. North wind 5 to 8 mph.
Thursday Night - 48°F
May 21, 2026
5 mph N
Mostly Cloudy
Mostly cloudy, with a low around 48. North wind around 5 mph.
Friday - 64°F
May 22, 2026
7 mph NE
Partly Sunny
Partly sunny, with a high near 64. Northeast wind around 7 mph.
Friday Night - 47°F
May 22, 2026
2 to 6 mph E
Mostly Cloudy
Mostly cloudy, with a low around 47. East wind 2 to 6 mph.
Saturday - 65°F
May 23, 2026
2 to 7 mph E
Slight Chance Rain Showers
A slight chance of rain showers. Partly sunny, with a high near 65. East wind 2 to 7 mph.

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