Your Ultimate Boating Resource

HomeForecastsMassachusetts ForecastsCohasset, MA Marine Weather

Cohasset, MA Marine Weather Forecast

Station 44013 - BOSTON 16 NM East of Boston, MA

July 2, 2026 6:40 pm EDT
Location: 42.346N 70.651W
Wind Direction: WSW (250°)
Wind Speed: 7.8 knots
Wind Gust: 7.8 knots
Atmospheric Pressure: 29.84 in (1010.6 mb)
Air Temperature: 78.4°F (25.8°C)
Dew Point: 69.8°F (21.0°C)
Water Temperature: 70.9°F (21.6°C)


Tonight - 77°F
Jul 02, 2026
7 mph W
Mostly Clear
Mostly clear, with a low around 77. Heat index values as high as 98. West wind around 7 mph.
Friday - 94°F
Jul 03, 2026
6 mph W
Sunny
Sunny, with a high near 94. Heat index values as high as 100. West wind around 6 mph.
Friday Night - 75°F
Jul 03, 2026
5 mph W
Mostly Clear
Mostly clear, with a low around 75. Heat index values as high as 98. West wind around 5 mph. Chance of precipitation is 20%.
Independence Day - 94°F
Jul 04, 2026
7 mph W
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 2pm and 4pm, then showers and thunderstorms likely. Mostly sunny, with a high near 94. Heat index values as high as 98. West wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Saturday Night - 69°F
Jul 04, 2026
5 mph NW
Showers And Thunderstorms Likely then Partly Cloudy
Showers and thunderstorms likely before 9pm. Partly cloudy, with a low around 69. Northwest wind around 5 mph. Chance of precipitation is 60%.
Sunday - 87°F
Jul 05, 2026
7 mph NE
Sunny
Sunny, with a high near 87. Northeast wind around 7 mph.
Sunday Night - 66°F
Jul 05, 2026
1 to 5 mph S
Partly Cloudy
Partly cloudy, with a low around 66. South wind 1 to 5 mph.
Monday - 79°F
Jul 06, 2026
1 to 8 mph SE
Slight Chance Rain Showers
A slight chance of rain showers after 9am. Partly sunny, with a high near 79. Southeast wind 1 to 8 mph.
Monday Night - 64°F
Jul 06, 2026
2 to 7 mph SE
Chance Rain Showers
A chance of rain showers. Mostly cloudy, with a low around 64. Southeast wind 2 to 7 mph. Chance of precipitation is 40%.
Tuesday - 77°F
Jul 07, 2026
6 to 10 mph E
Chance Rain Showers
A chance of rain showers. Partly sunny, with a high near 77. East wind 6 to 10 mph. Chance of precipitation is 40%.
Tuesday Night - 64°F
Jul 07, 2026
3 to 8 mph E
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy, with a low around 64. East wind 3 to 8 mph.
Wednesday - 79°F
Jul 08, 2026
5 to 9 mph E
Slight Chance Rain Showers then Mostly Sunny
A slight chance of rain showers before 8am. Mostly sunny, with a high near 79. East wind 5 to 9 mph.
Wednesday Night - 66°F
Jul 08, 2026
3 to 7 mph S
Partly Cloudy
Partly cloudy, with a low around 66. South wind 3 to 7 mph.
Thursday - 86°F
Jul 09, 2026
3 to 7 mph SW
Mostly Sunny then Slight Chance Rain Showers
A slight chance of rain showers after 5pm. Mostly sunny, with a high near 86. Southwest wind 3 to 7 mph.

Don't Miss

Add us on Google to stay connected!
Add Us on Google