Idaho Falls Weather Forecast

    • 45
    • 67

    Breezy

    • 35
    • 61

    Breezy

    • 38
    • 61

    Slight Chance Rain

    • 42
    • 64

    Chance Rain

    • 40
    • 61

    Chance Rain

    • 39
    • 60

    Chance Rain

Today 18 May Upper Snake River Plain

Sunny, windy. Highs 61 to 68. South Winds around 10 Mph. Increasing to southwest 20 to 30 Mph in the afternoon.

Tonight 18 May Upper Snake River Plain

Mostly cloudy. Lows 39 to 46. Southwest Winds 10 to 20 Mph.

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  • Temperature Forecast NOAA

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Idaho Falls Temperature Statistics

May Temperature

Idaho Falls Regional Airport (2.5 miles)

  • Lowest 2 May, 2024

    26.9 °F

  • Average May

    50.8 °F

  • Highest 12 May, 2024

    79.6 °F

Climate (2019–Present)

Idaho Falls Regional Airport (2.5 miles)

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  • Average Low 2019–2024

    32.3 °F

  • Average 2019–2024

    45 °F

  • Average High 2019–2024

    57.3 °F
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