Cohasset Weather Forecast

    • 30
    • 49

    Decreasing Clouds

    • 33
    • 43

    Mostly Sunny

    • 25
    • 43

    Mostly Sunny

    • 28
    • 36

    Mostly Sunny

    • 35
    • 49

    Mostly Sunny

    • 35
    • 47

    Partly Sunny

Today 11 Dec Eastern Plymouth

Partly sunny and cooler. Near steady temperature in the mid 40s. West Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 11 Dec Eastern Plymouth

Mostly clear. Much cooler with Lows in the upper 20s. West Winds 15 to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cohasset Temperature Statistics

December Temperature

Marshfield Airport (11.8 miles)

  • Lowest 7 December, 2023

    19.4 °F

  • Average December

    39.5 °F

  • Highest 1 December, 2023

    55.4 °F

Climate (2018–Present)

Marshfield Airport (11.8 miles)

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  • Average Low 2018–2023

    45 °F

  • Average 2018–2023

    53.4 °F

  • Average High 2018–2023

    61.2 °F
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