Ithaca Weather Forecast

    • 70
    • 91

    Chance Thunderstorms

    • 61
    • 87

    Chance Rain Showers

    • 57
    • 80

    Mostly Sunny

    • 60
    • 82

    Partly Sunny

    • 67
    • 86

    Partly Sunny

    • 69
    • 90

    Chance Rain Showers

    • 59
    • 84

    Slight Chance Thunderstorms

Today 4 Sep Darke

Mostly sunny. A slight chance of Showers and Thunderstorms late this morning. Hot with Highs around 90. West Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 101.

Tonight 4 Sep Darke

Mostly clear with a chance of Showers and Thunderstorms this Evening, then partly cloudy with a chance of Showers with a slight chance of Thunderstorms after midnight. Unseasonably warm with Lows around 70. West Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ithaca Temperature Statistics

September Temperature

Dayton, Cox Dayton International Airport (17.4 miles)

  • Lowest 1 September, 2026

    73.7 °F

  • Average September

    83.5 °F

  • Highest 1 September, 2026

    93.7 °F

Climate (2021–2026)

Dayton, Cox Dayton International Airport (17.4 miles)

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  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    64.8 °F
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