Idaho City Weather Forecast

    • 29
    • 54

    Mostly Sunny

    • 35
    • 50

    Rain

    • 33
    • 51

    Rain

    • 23
    • 46

    Snow Likely

    • 31
    • 41

    Rain/Snow

    • 24
    • 46

    Rain

Today 14 Dec Boise Mountains

Sunny. Highs 43 to 55.

Tonight 14 Dec Boise Mountains

Mostly clear. Lows 23 to 37.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Idaho City Temperature Statistics

December Temperature

Boise Air Terminal (26.7 miles)

  • Lowest 1 December, 2025

    21 °F

  • Average December

    41.4 °F

  • Highest 10 December, 2025

    62.1 °F

Climate (2020–Present)

Boise Air Terminal (26.7 miles)

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  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    54.7 °F

  • Average High 2020–2025

    65.9 °F
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