Green Harbor River Mouth Weather Forecast

    • 57
    • 64

    Decreasing Clouds

    • 63
    • 71

    Partly Sunny

    • 65
    • 71

    Chance Rain Showers

    • 58
    • 69

    Partly Sunny

    • 58
    • 62

    Chance Rain Showers

    • 61
    • 65

    Chance Rain Showers

    • 60
    • 65

    Chance Rain Showers

Today 15 Sep Eastern Plymouth

Sunny. Near steady temperature in the mid 60s. Northeast Winds around 5 Mph.

Tonight 15 Sep Eastern Plymouth

Mostly clear. Lows in the lower 50s. Southeast Winds around 5 Mph, becoming south after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Green Harbor River Mouth Temperature Statistics

September Temperature

Marshfield Airport (1.9 miles)

  • Lowest 12 September, 2026

    48.2 °F

  • Average September

    66.9 °F

  • Highest 10 September, 2026

    87.8 °F

Climate (2021–2026)

Marshfield Airport (1.9 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    52.4 °F

  • Average High 2021–2026

    60.2 °F
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