Jacksonville Weather Forecast

    • 54
    • 72

    Partly Sunny

    • 51
    • 70

    Partly Sunny

    • 52
    • 72

    Partly Sunny

    • 60
    • 75

    Mostly Cloudy

    • 64
    • 81

    Rain Showers Likely

    • 53
    • 71

    Chance Rain Showers

Today 5 Sep Tompkins

Partly sunny. Highs in the lower 70s. Northwest Winds 5 to 10 Mph.

Tonight 5 Sep Tompkins

Partly cloudy. Lows in the lower 50s. North Winds 5 to 10 Mph.

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Jacksonville Temperature Statistics

September Temperature

Ithaca, Ithaca Tompkins Regional Airport (8.1 miles)

  • Lowest 2 September, 2026

    63 °F

  • Average September

    71.1 °F

  • Highest 2 September, 2026

    80.1 °F

Climate (2021–2026)

Ithaca, Ithaca Tompkins Regional Airport (8.1 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    57.9 °F
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