Idaho Falls Regional Airport Weather Forecast

    • 45
    • 78

    Increasing Clouds

    • 45
    • 82

    Partly Sunny

    • 49
    • 85

    Partly Sunny

    • 43
    • 75

    Slight Chance Thunderstorms

    • 42
    • 69

    Chance Rain Showers

    • 43
    • 74

    Chance Rain Showers

    • 42
    • 69

    Chance Rain Showers

Today 23 May Upper Snake River Plain

Sunny. Highs 70 to 79. Southeast Winds up to 10 Mph. Shifting to southwest in the afternoon.

Tonight 23 May Upper Snake River Plain

Mostly cloudy. Lows 40 to 50. Southwest Winds 10 to 15 Mph.

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Idaho Falls Regional Airport Temperature Statistics

May Temperature

Idaho Falls Regional Airport (0 miles)

  • Lowest 19 May, 2026

    24.7 °F

  • Average May

    53.3 °F

  • Highest 13 May, 2026

    88.6 °F

Climate (2021–Present)

Idaho Falls Regional Airport (0 miles)

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  • Average Low 2021–2026

    33.8 °F

  • Average 2021–2026

    46.9 °F

  • Average High 2021–2026

    59.9 °F
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