Green Harbor River Mouth Weather Forecast

    • 60
    • 67

    Increasing Clouds

    • 60
    • 68

    Slight Chance Rain Showers

    • 57
    • 66

    Mostly Sunny

    • 59
    • 70

    Mostly Sunny

    • 61
    • 70

    Mostly Cloudy

    • 62
    • 69

    Partly Sunny

Today 13 Sep Eastern Plymouth

Sunny. Highs in the lower 70s. South Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon.

Tonight 13 Sep Eastern Plymouth

Partly cloudy. Lows in the upper 50s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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Green Harbor River Mouth Temperature Statistics

September Temperature

Marshfield Airport (1.9 miles)

  • Lowest 9 September, 2025

    46.4 °F

  • Average September

    64.3 °F

  • Highest 6 September, 2025

    84.2 °F

Climate (2020–Present)

Marshfield Airport (1.9 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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