Long Island Weather Forecast

    • 64
    • 72

    Increasing Clouds

    • 68
    • 76

    Mostly Sunny

    • 61
    • 77

    Rain Showers Likely

    • 58
    • 65

    Chance Rain Showers

    • 58
    • 68

    Partly Sunny

    • 58
    • 66

    Partly Sunny

Today 4 Sep Eastern Plymouth

Sunny. Patchy fog this morning. Highs in the upper 70s. South Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon.

Tonight 4 Sep Eastern Plymouth

Partly cloudy in the Evening, then mostly cloudy with a slight chance of Showers after midnight. Patchy fog after midnight. Lows in the lower 60s. South Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 20 percent.

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Long Island Temperature Statistics

September Temperature

Marshfield Airport (3.7 miles)

  • Lowest 1 September, 2025

    50 °F

  • Average September

    63.6 °F

  • Highest 2 September, 2025

    73.4 °F

Climate (2020–Present)

Marshfield Airport (3.7 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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