Marine Weather Net

Cohasset, MA Weather Forecast




Cohasset, Massachusetts

 Lat: 42.24N, Lon: 70.8W

Current Conditions Updated: 254 PM EDT WED AUG 26 2026

Mostly Clear
Temp: 77°F
  • Humidity:
  • 53%
  • Winds:
  • 16 MPH ESE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.04 in.
  • Dewpoint:
  • 59°F
  • Heat index:
  • 79°F

  • Sunrise:
  • 6:00 AM EDT
  • Sunset:
  • 7:25 PM EDT
  • Moonrise:
  • 6:52 PM EDT
  • Moonset:
  • 4:11 AM EDT

TONIGHT

PARTLY CLOUDY
Lo: 65°F

THURSDAY

MOSTLY SUNNY
Hi: 85°F
Lo: 67°F

FRIDAY

PARTLY SUNNY
Hi: 85°F
Lo: 65°F
Precip: 50%

SATURDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 65°F
Weather Forecast In Detail:
Forecast Issued: 402 PM EDT Wed Aug 26 2026

Tonight...Partly cloudy this evening, then becoming mostly cloudy. Lows in the mid 60s. South winds around 5 mph.
Thursday...Mostly sunny. Humid with highs in the mid 80s. South winds 10 to 15 mph.
Thursday Night...Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Humid with lows in the upper 60s. South winds 5 to 10 mph. Gusts up to 20 mph in the evening. Chance of rain 30 percent.
Friday...Partly sunny with a chance of showers. Humid with highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 50 percent.
Friday Night...Partly cloudy with a chance of showers. Lows in the mid 60s. West winds around 5 mph, becoming northwest after midnight. Chance of rain 50 percent.
Saturday...Mostly sunny. Highs in the upper 70s.
Saturday Night And Sunday...Mostly clear. Lows around 60. Highs in the mid 80s.
Sunday Night And Monday...Partly cloudy. Lows in the upper 60s. Highs in the lower 80s.
Monday Night And Tuesday...Mostly cloudy. A 30 percent chance of showers. Lows in the mid 60s. Highs in the upper 70s.
Tuesday Night And Wednesday...Mostly cloudy. A 40 percent chance of showers. Lows in the mid 60s. Highs around 80.
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