Marine Weather Net

Cohasset, MA Weather Forecast




Cohasset, Massachusetts

 Lat: 42.24N, Lon: 70.8W

Current Conditions Updated: 154 AM EDT WED SEP 9 2026

Mostly Clear
Temp: 66°F
  • Humidity:
  • 75%
  • Winds:
  • 7 MPH W
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.23 in.
  • Dewpoint:
  • 58°F
  • Heat index:
  • 66°F

  • Sunrise:
  • 6:14 AM EDT
  • Sunset:
  • 7:03 PM EDT
  • Moonrise:
  • 4:20 AM EDT
  • Moonset:
  • 6:20 PM EDT

TONIGHT

MOSTLY CLOUDY
Lo: 60°F

WEDNESDAY

MOSTLY CLOUDY
Hi: 79°F
Lo: 75°F

THURSDAY

PARTLY SUNNY
Hi: 85°F
Lo: 59°F
Precip: 40%

FRIDAY

SUNNY

Hi: 79°F
Lo: 59°F
Weather Forecast In Detail:
Forecast Issued: 103 AM EDT Wed Sep 09 2026

Rest Of Tonight...Mostly cloudy. Near steady temperature around 60. Northeast winds around 5 mph.
Wednesday...Mostly cloudy. Highs in the upper 70s. East winds around 5 mph, becoming south 10 to 15 mph with gusts up to 25 mph in the afternoon.
Wednesday Night...Mostly cloudy. A chance of showers after midnight. Not as cool. Humid with lows around 70. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 50 percent.
Thursday...Partly sunny with a 40 percent chance of showers. Highs in the mid 80s. Southwest winds 15 to 20 mph with gusts up to 35 mph.
Thursday Night...Mostly cloudy. Cooler with lows in the upper 50s. West winds 15 to 20 mph, becoming northwest around 10 mph after midnight.
Friday...Sunny. Highs in the upper 70s.
Friday Night...Clear. Lows in the upper 50s.
Saturday...Sunny. Highs in the upper 70s.
Saturday Night And Sunday...Partly cloudy. Lows in the lower 60s. Highs around 80.
Sunday Night...Mostly cloudy. Lows in the mid 60s.
Monday...Partly cloudy. Highs in the upper 70s. Lows around 60.
Tuesday...Partly cloudy. Highs in the upper 70s. Lows around 60.
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