Idaho Falls Regional Airport Weather Forecast

    • 40
    • 55

    Rain

    • 36
    • 54

    Rain

    • 25
    • 46

    Rain/Snow

    • 18
    • 36

    Partly Sunny

    • 15
    • 33

    Partly Sunny

    • 15
    • 35

    Partly Sunny

Today 24 Dec Upper Snake River Plain

Areas of fog in the morning. Mostly sunny with a slight chance of rain in the morning. Then rain in the afternoon. Highs 45 to 55. Southeast Winds 10 to 15 Mph.

Tonight 24 Dec Upper Snake River Plain

Rain. Lows 34 to 42. South Winds 10 to 20 Mph.

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Idaho Falls Regional Airport Temperature Statistics

December Temperature

Idaho Falls Regional Airport (0 miles)

  • Lowest 3 December, 2025

    9 °F

  • Average December

    36.1 °F

  • Highest 11 December, 2025

    54 °F

Climate (2020–Present)

Idaho Falls Regional Airport (0 miles)

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  • Average Low 2020–2025

    33.4 °F

  • Average 2020–2025

    46.4 °F

  • Average High 2020–2025

    59.2 °F
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