Mount Heinen Weather Forecast

    • 22
    • 36

    Snow

    • 22
    • 29

    Partly Sunny

    • 22
    • 31

    Partly Sunny

    • 25
    • 35

    Mostly Cloudy

    • 26
    • 37

    Partly Sunny

    • 28
    • 37

    Partly Sunny

Today 7 Jan Boise Mountains

Snow, mainly this morning. Areas of fog this Morning, then patchy fog this afternoon. Snow heavy at Times this morning. Chance of snow near 100 percent. Snow accumulation up to 1 inch across the lower Elevations, with up to 4 Inches over the Mountains. Highs 28 to 41.

Tonight 7 Jan Boise Mountains

Snow Showers with a chance of Thunderstorms in the Evening, then snow after midnight. Areas of fog. Thunderstorms may produce small hail in the evening. Chance of snow 80 percent. Snow accumulation of 2 to 3 Inches. Colder with Lows 8 to 23.

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Mount Heinen Temperature Statistics

January Temperature

Boise Air Terminal (19.3 miles)

  • Lowest 1 January, 2026

    28.9 °F

  • Average January

    41.3 °F

  • Highest 3 January, 2026

    57.9 °F

Climate (2021–Present)

Boise Air Terminal (19.3 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    54.8 °F

  • Average High 2021–2026

    66 °F
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