Mount Heinen Weather Forecast

    • 32
    • 38

    Rain/Snow

    • 29
    • 38

    Chance Snow

    • 35
    • 39

    Rain Likely

    • 38
    • 42

    Rain Likely

    • 37
    • 43

    Rain Likely

    • 36
    • 43

    Chance Rain

Today 5 Dec Boise Mountains

Rain and snow. Areas of fog. Chance of precipitation near 100 percent. Little or no snow accumulation across the lower Elevations, with snow accumulation up to 5 Inches over the Mountains. Highs 31 to 42.

Tonight 5 Dec Boise Mountains

Rain and snow. Areas of fog. Chance of precipitation near 100 percent. No snow accumulation across the lower Elevations, with snow accumulation up to 6 Inches over the Mountains. Lows 24 to 36.

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Mount Heinen Temperature Statistics

December Temperature

Boise Air Terminal (19.3 miles)

  • Lowest 1 December, 2025

    21 °F

  • Average December

    33.5 °F

  • Highest 2 December, 2025

    42.1 °F

Climate (2020–Present)

Boise Air Terminal (19.3 miles)

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  • Average Low 2020–2025

    43.9 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    65.9 °F
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