Cohasset Harbor - White Head Weather Forecast

    • 58
    • 67

    Partly Sunny

    • 58
    • 67

    Mostly Cloudy

    • 61
    • 67

    Chance Rain Showers

    • 62
    • 71

    Chance Rain Showers

    • 54
    • 74

    Mostly Sunny

    • 51
    • 61

    Mostly Sunny

    • 55
    • 67

    Mostly Sunny

Today 15 Sep Eastern Plymouth

Mostly sunny. Near steady temperature in the upper 60s. Northeast Winds 5 to 10 Mph.

Tonight 15 Sep Eastern Plymouth

Partly cloudy this Evening, then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 50s. Northeast Winds around 5 Mph.

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  • Temperature Real-Time

Cohasset Harbor - White Head Temperature Statistics

September Temperature

Marshfield Airport (11.8 miles)

  • Lowest 9 September, 2025

    46.4 °F

  • Average September

    63.8 °F

  • Highest 6 September, 2025

    84.2 °F

Climate (2020–Present)

Marshfield Airport (11.8 miles)

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  • Average Low 2020–2025

    44.6 °F

  • Average 2020–2025

    52.9 °F

  • Average High 2020–2025

    60.7 °F
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