Idaho City Weather Forecast

    • 42
    • 82

    Mostly Sunny

    • 50
    • 91

    Increasing Clouds

    • 37
    • 78

    Chance Thunderstorms

    • 35
    • 69

    Mostly Sunny

    • 35
    • 72

    Mostly Sunny

    • 30
    • 61

    Partly Sunny

    • 31
    • 63

    Mostly Sunny

Today 11 May Boise Mountains

Sunny. Highs 68 to 83.

Tonight 11 May Boise Mountains

Mostly clear. Lows 40 to 55.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Idaho City Temperature Statistics

May Temperature

Boise Air Terminal (26.7 miles)

  • Lowest 9 May, 2026

    45 °F

  • Average May

    64.3 °F

  • Highest 3 May, 2026

    81.6 °F

Climate (2021–Present)

Boise Air Terminal (26.7 miles)

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  • Average Low 2021–2026

    44.2 °F

  • Average 2021–2026

    55 °F

  • Average High 2021–2026

    66.3 °F
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