Cohasset Weather Forecast

    • 54
    • 66

    Mostly Sunny

    • 43
    • 67

    Mostly Sunny

    • 36
    • 53

    Mostly Sunny

    • 43
    • 58

    Partly Sunny

    • 47
    • 64

    Chance Rain Showers

    • 47
    • 60

    Chance Rain Showers

Today 29 Oct Eastern Plymouth

Sunny. Not as cool with Highs in the mid 60s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 29 Oct Eastern Plymouth

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cohasset Temperature Statistics

October Temperature

Marshfield Airport (11.8 miles)

  • Lowest 24 October, 2026

    32 °F

  • Average October

    55.4 °F

  • Highest 2 October, 2026

    84.2 °F

Climate (2021–2026)

Marshfield Airport (11.8 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    52.3 °F

  • Average High 2021–2026

    60.1 °F
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