Ithaca Weather Forecast

    • 66
    • 83

    Rain Showers Likely

    • 57
    • 82

    Rain Showers Likely

    • 53
    • 68

    Chance Rain Showers

    • 56
    • 69

    Chance Rain Showers

    • 55
    • 69

    Chance Thunderstorms

    • 53
    • 69

    Mostly Cloudy

    • 51
    • 71

    Partly Sunny

Today 19 Sep Darke

Partly cloudy. Highs in the lower 70s.

Tonight 19 Sep Darke

Mostly cloudy. A chance of Showers and Thunderstorms this Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the mid 60s. South Winds 5 to 10 Mph. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Ithaca Temperature Statistics

September Temperature

Dayton, Cox Dayton International Airport (17.4 miles)

  • Lowest 14 September, 2026

    52.6 °F

  • Average September

    76.4 °F

  • Highest 3 September, 2026

    94.6 °F

Climate (2021–2026)

Dayton, Cox Dayton International Airport (17.4 miles)

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

  • Average Low 2021–2026

    46.1 °F

  • Average 2021–2026

    55.4 °F

  • Average High 2021–2026

    64.8 °F
Get WillyWeather+ to remove ads