Idaho Falls Weather Forecast

    • 2
    • 25

    Mostly Cloudy

    • -1
    • 16

    Increasing Clouds

    • -7
    • 16

    Partly Sunny

    • -8
    • 11

    Mostly Sunny

    • -1
    • 17

    Mostly Cloudy

    • 0
    • 19

    Partly Sunny

    • 5
    • 21

    Partly Sunny

Today 17 Jan Upper Snake River Plain

Decreasing Clouds. A slight chance of snow. Highs 23 to 30. Northwest Winds up to 10 Mph. Shifting to north in the afternoon.

Tonight 17 Jan Upper Snake River Plain

Mostly cloudy. Colder. Lows 5 below to 3 above zero. North Winds 10 to 15 Mph.

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Idaho Falls Temperature Statistics

January Temperature

Idaho Falls Regional Airport (2.5 miles)

  • Lowest 8 January, 2025

    2.8 °F

  • Average January

    23.1 °F

  • Highest 4 January, 2025

    39.7 °F

Climate (2020–Present)

Idaho Falls Regional Airport (2.5 miles)

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  • Average Low 2020–2025

    32.8 °F

  • Average 2020–2025

    45.7 °F

  • Average High 2020–2025

    58.3 °F
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