Idaho Falls Regional Airport Weather Forecast

    • 22
    • 35

    Patchy Fog

    • 22
    • 37

    Mostly Cloudy

    • 22
    • 41

    Mostly Cloudy

    • 26
    • 44

    Mostly Cloudy

    • 24
    • 43

    Mostly Cloudy

    • 20
    • 41

    Partly Sunny

Today 29 Jan Upper Snake River Plain

Mostly cloudy. Patchy fog in the morning. Highs 29 to 36. Light and variable Winds. Becoming south up to 10 Mph in the afternoon.

Tonight 29 Jan Upper Snake River Plain

Mostly cloudy. Patchy fog through the night. Lows 15 to 25. Light and variable Winds.

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Idaho Falls Regional Airport Temperature Statistics

January Temperature

Idaho Falls Regional Airport (0 miles)

  • Lowest 24 January, 2026

    4.6 °F

  • Average January

    27.9 °F

  • Highest 3 January, 2026

    49.6 °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

    59.4 °F
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