Idaho Falls Regional Airport Weather Forecast

    • 38
    • 50

    Rain

    • 24
    • 50

    Rain

    • 33
    • 40

    Snow

    • 32
    • 48

    Rain Likely

    • 28
    • 43

    Chance Rain/Snow

    • 33
    • 43

    Rain/Snow Likely

Today 16 Dec Upper Snake River Plain

Mostly cloudy. Highs 41 to 50. Southwest Winds 10 to 15 Mph.

Tonight 16 Dec Upper Snake River Plain

Mostly cloudy. A chance of rain after midnight. Breezy. Lows 29 to 39. Southwest Winds 10 to 15 Mph. Shifting to south 15 to 25 Mph after midnight. Chance of precipitation 50 percent.

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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

    35.7 °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

    46.3 °F

  • Average High 2020–2025

    59.1 °F
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