Idaho Falls Regional Airport Weather Forecast

    • 48
    • 83

    Rain Showers Likely

    • 41
    • 68

    Breezy

    • 41
    • 72

    Mostly Sunny

    • 48
    • 78

    Mostly Sunny

    • 51
    • 81

    Mostly Sunny

    • 49
    • 81

    Partly Sunny

Today 6 Sep Upper Snake River Plain

Sunny, breezy. Highs 76 to 83. Southeast Winds up to 10 Mph. Increasing to south 15 to 25 Mph in the afternoon.

Tonight 6 Sep Upper Snake River Plain

Mostly cloudy with a chance of rain Showers and a slight chance of Thunderstorms. Breezy. Lows 45 to 52. South Winds 15 to 25 Mph. Chance of precipitation 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Idaho Falls Regional Airport Temperature Statistics

September Temperature

Idaho Falls Regional Airport (0 miles)

  • Lowest 3 September, 2026

    48 °F

  • Average September

    65.4 °F

  • Highest 1 September, 2026

    80.7 °F

Climate (2021–2026)

Idaho Falls Regional Airport (0 miles)

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

  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    60 °F
Get WillyWeather+ to remove ads