Mount Heinen Weather Forecast

    • 26
    • 44

    Rain/Snow

    • 23
    • 34

    Mostly Cloudy

    • 30
    • 41

    Mostly Sunny

    • 36
    • 52

    Partly Sunny

    • 42
    • 60

    Mostly Cloudy

    • 43
    • 62

    Slight Chance Rain Showers

Today 15 Apr Boise Mountains

Widespread rain and snow Showers. Areas of fog this morning. Patchy fog this afternoon. Isolated Thunderstorms this afternoon. Chance of precipitation near 100 percent. No snow accumulation across the lower Elevations, with snow accumulation up to 7 Inches over the Mountains. Highs 38 to 53.

Tonight 15 Apr Boise Mountains

Rain and snow Showers, with a slight chance of Thunderstorms in the Evening, then snow Showers likely after midnight. Patchy fog in the evening. Areas of fog after midnight. 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. Much Colder with Lows 15 to 30.

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Mount Heinen Temperature Statistics

April Temperature

Boise Air Terminal (19.3 miles)

  • Lowest 3 April, 2026

    30.7 °F

  • Average April

    52.9 °F

  • Highest 6 April, 2026

    74.6 °F

Climate (2021–Present)

Boise Air Terminal (19.3 miles)

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  • Average Low 2021–2026

    44.2 °F

  • Average 2021–2026

    55 °F

  • Average High 2021–2026

    66.2 °F
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