Green Harbor River Mouth Weather Forecast

    • 65
    • 74

    Becoming Sunny

    • 69
    • 76

    Chance Rain Showers

    • 64
    • 77

    Chance Thunderstorms

    • 62
    • 71

    Mostly Sunny

    • 62
    • 70

    Mostly Sunny

    • 67
    • 75

    Partly Sunny

    • 69
    • 78

    Partly Sunny

Today 18 Jul Eastern Plymouth

Mostly sunny. Near steady temperature in the upper 70s. Northeast Winds 5 to 10 Mph.

Tonight 18 Jul Eastern Plymouth

Mostly clear. Lows in the lower 60s. Southeast Winds around 5 Mph, becoming southwest after midnight.

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Green Harbor River Mouth Temperature Statistics

July Temperature

Marshfield Airport (1.9 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 (1.9 miles)

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  • Average Low 2020–2025

    44.8 °F

  • Average 2020–2025

    53.1 °F

  • Average High 2020–2025

    60.9 °F
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