Marine Weather Net

Cohasset, MA Weather Forecast




Cohasset, Massachusetts

 Lat: 42.24N, Lon: 70.8W

Current Conditions Updated: 654 PM EDT TUE SEP 15 2026

Mostly Clear
Temp: 61°F
  • Humidity:
  • 69%
  • Winds:
  • 12 MPH ESE
  • Gusts:
  • N/A MPH
  • Barometer:
  • 30.36 in.
  • Dewpoint:
  • 51°F
  • Heat index:
  • 61°F

  • Sunrise:
  • 6:20 AM EDT
  • Sunset:
  • 6:53 PM EDT
  • Moonrise:
  • 11:23 AM EDT
  • Moonset:
  • 8:42 PM EDT

TONIGHT

PARTLY CLOUDY
Lo: 51°F

WEDNESDAY

MOSTLY SUNNY
Hi: 79°F
Lo: 61°F

THURSDAY

PARTLY SUNNY
Hi: 79°F
Lo: 65°F

FRIDAY

MOSTLY SUNNY
Hi: 75°F
Lo: 51°F
Weather Forecast In Detail:
Forecast Issued: 404 PM EDT Tue Sep 15 2026

Tonight...Mostly clear this evening, then becoming partly cloudy. Lows in the lower 50s. South winds around 5 mph.
Wednesday...Mostly sunny. Not as cool with highs in the upper 70s. Southwest winds 5 to 10 mph.
Wednesday Night...Partly cloudy. Lows in the lower 60s. Southwest winds around 5 mph.
Thursday...Partly sunny. Highs in the upper 70s. Northwest winds around 5 mph, becoming south in the afternoon.
Thursday Night...Mostly cloudy with a 40 percent chance of showers. Lows in the mid 60s. Southwest winds 5 to 10 mph.
Friday...Mostly sunny. Highs in the mid 70s.
Friday Night...Mostly clear. Cooler with lows in the lower 50s.
Saturday...Mostly sunny. Highs in the upper 60s.
Saturday Night...Mostly cloudy with a 30 percent chance of showers. Lows in the lower 50s.
Sunday...Mostly cloudy with a 50 percent chance of showers. Highs in the upper 60s. Lows in the mid 50s.
Monday...Mostly cloudy with a 50 percent chance of showers. Highs in the upper 60s. Lows in the mid 50s.
Monday Night And Tuesday...Mostly cloudy. A 40 percent chance of showers. Lows in the mid 50s. Highs in the upper 60s.
SHARE THIS PAGE: