Idaho Falls Regional Airport Weather Forecast

    • 34
    • 63

    Sunny

    • 37
    • 67

    Mostly Sunny

    • 36
    • 64

    Partly Sunny

    • 40
    • 66

    Partly Sunny

    • 39
    • 65

    Rain

    • 30
    • 48

    Rain Likely

    • 31
    • 48

    Partly Sunny

Today 18 Oct Upper Snake River Plain

Mostly sunny. Highs 51 to 58.

Tonight 18 Oct Upper Snake River Plain

Mostly clear. Lows 31 to 41. Light and variable Winds. Becoming northeast up to 10 Mph after midnight.

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Idaho Falls Regional Airport Temperature Statistics

October Temperature

Idaho Falls Regional Airport (0 miles)

  • Lowest 16 October, 2026

    30.9 °F

  • Average October

    53.8 °F

  • Highest 5 October, 2026

    85.6 °F

Climate (2021–2026)

Idaho Falls Regional Airport (0 miles)

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  • Average Low 2021–2026

    33.9 °F

  • Average 2021–2026

    47 °F

  • Average High 2021–2026

    60.1 °F
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