Ithaca Weather Forecast

    • 56
    • 81

    Chance Rain Showers

    • 49
    • 68

    Rain Showers

    • 45
    • 70

    Partly Sunny

    • 42
    • 68

    Mostly Sunny

    • 46
    • 72

    Mostly Sunny

    • 50
    • 77

    Partly Sunny

Today 5 Sep Tompkins

Areas of fog this morning. Mostly sunny. Highs in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 5 Sep Tompkins

Mostly clear in the Evening, then becoming mostly cloudy. A slight chance of Thunderstorms. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Lows in the mid 50s. South Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming west after midnight. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Ithaca Temperature Statistics

September Temperature

Ithaca, Ithaca Tompkins Regional Airport (3.7 miles)

  • Lowest 1 September, 2025

    46.4 °F

  • Average September

    65.6 °F

  • Highest 2 September, 2025

    77 °F

Climate (2020–Present)

Ithaca, Ithaca Tompkins Regional Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    39.8 °F

  • Average 2020–2025

    48.9 °F

  • Average High 2020–2025

    58.1 °F
Get WillyWeather+ to remove ads