Ithaca Weather Forecast

    • 59
    • 78

    Rain Showers Likely

    • 47
    • 74

    Partly Sunny

    • 55
    • 71

    Rain Showers

    • 50
    • 70

    Chance Rain Showers

    • 49
    • 68

    Chance Rain Showers

    • 49
    • 68

    Chance Rain Showers

Today 17 Sep Tompkins

Showers likely with a slight chance of Thunderstorms. Highs in the mid 70s. Southeast Winds around 5 Mph, becoming northwest around 5 Mph this afternoon. Chance of rain 70 percent.

Tonight 17 Sep Tompkins

Partly cloudy. A slight chance of Showers in the evening. Lows in the upper 50s. Northwest Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ithaca Temperature Statistics

September Temperature

Ithaca, Ithaca Tompkins Regional Airport (3.7 miles)

  • Lowest 15 September, 2026

    41 °F

  • Average September

    65.2 °F

  • Highest 13 September, 2026

    81 °F

Climate (2021–2026)

Ithaca, Ithaca Tompkins Regional Airport (3.7 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    48.8 °F

  • Average High 2021–2026

    57.8 °F
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