Idaho Falls Regional Airport Weather Forecast

    • 18
    • 30

    Mostly Cloudy

    • 7
    • 31

    Partly Sunny

    • 10
    • 25

    Mostly Sunny

    • 12
    • 28

    Mostly Sunny

    • 19
    • 32

    Mostly Cloudy

    • 20
    • 35

    Partly Sunny

Today 22 Jan Upper Snake River Plain

Mostly cloudy. Highs 26 to 33. Light and variable Winds.

Tonight 22 Jan Upper Snake River Plain

Mostly cloudy. Lows 13 to 20. Light and variable Winds.

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Idaho Falls Regional Airport Temperature Statistics

January Temperature

Idaho Falls Regional Airport (0 miles)

  • Lowest 17 January, 2026

    16 °F

  • Average January

    29.3 °F

  • Highest 3 January, 2026

    48 °F

Climate (2021–Present)

Idaho Falls Regional Airport (0 miles)

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  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    59.3 °F
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