Idaho Falls Weather Forecast

    • 35
    • 55

    Mostly Cloudy

    • 36
    • 57

    Partly Sunny

    • 37
    • 61

    Partly Sunny

    • 40
    • 66

    Mostly Sunny

    • 41
    • 67

    Mostly Sunny

    • 45
    • 70

    Mostly Sunny

    • 45
    • 70

    Mostly Sunny

Today 24 Sep Upper Snake River Plain

Mostly sunny. A slight chance of rain in the afternoon. Highs 49 to 56. North Winds 10 to 15 Mph.

Tonight 24 Sep Upper Snake River Plain

Partly cloudy. Lows 30 to 37. Northwest Winds 10 to 15 Mph. Shifting to west after midnight.

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Idaho Falls Temperature Statistics

September Temperature

Idaho Falls Regional Airport (2.5 miles)

  • Lowest 17 September, 2017

    36 °F
  • Average September

    60.4 °F
  • Highest 3 September, 2017

    93 °F

Climate (2010–Present)

Idaho Falls Regional Airport (2.5 miles)

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  • Average Low 2010–Present

    34 °F
  • Average 2010–Present

    47.5 °F
  • Average High 2010–Present

    59.5 °F
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