Cohasset Harbor - Cohasset Cove Weather Forecast

    • 66
    • 85

    Severe Tstms

    • 59
    • 77

    Sunny

    • 58
    • 77

    Mostly Sunny

    • 67
    • 82

    Partly Sunny

    • 72
    • 88

    Partly Sunny

    • 72
    • 95

    Slight Chance Thunderstorms

    • 68
    • 84

    Slight Chance Thunderstorms

Today 20 Jul Eastern Plymouth

Mostly sunny. Near steady temperature around 80. South Winds around 10 Mph.

Tonight 20 Jul Eastern Plymouth

Mostly cloudy with a chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Patchy fog. Some Thunderstorms may be severe with damaging Winds, frequent Lightning, and heavy rainfall. Lows in the mid 60s. Southwest Winds 5 to 10 Mph, becoming northwest with Gusts up to 20 Mph after midnight. Chance of rain 50 percent.

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Cohasset Harbor - Cohasset Cove Temperature Statistics

July Temperature

Marshfield Airport (11.2 miles)

  • Lowest 5 July, 2025

    55.4 °F

  • Average July

    74.3 °F

  • Highest 1 July, 2025

    89.6 °F

Climate (2020–Present)

Marshfield Airport (11.2 miles)

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  • Average Low 2020–2025

    44.8 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    60.8 °F
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