Fort Jackson Weather Forecast

    • 51
    • 77

    Mostly Sunny

    • 52
    • 77

    Mostly Cloudy

    • 51
    • 78

    Partly Sunny

    • 36
    • 65

    Sunny

    • 39
    • 67

    Mostly Sunny

    • 57
    • 76

    Slight Chance Rain Showers

Today 16 Sep Southwestern St. Lawrence

Sunny. Highs in the upper 70s. Light and variable Winds.

Tonight 16 Sep Southwestern St. Lawrence

Clear until Midnight, then becoming partly cloudy. Lows in the lower 50s. Light and variable Winds.

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Fort Jackson Temperature Statistics

September Temperature

Massena, Massena International-Richards Field (16.8 miles)

  • Lowest 12 September, 2025

    37.9 °F

  • Average September

    60.2 °F

  • Highest 4 September, 2025

    84 °F

Climate (2020–Present)

Massena, Massena International-Richards Field (16.8 miles)

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  • Average Low 2020–2025

    36.7 °F

  • Average 2020–2025

    46.7 °F

  • Average High 2020–2025

    56.3 °F
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