Mount Heinen Weather Forecast

    • 34
    • 41

    Rain/Snow

    • 31
    • 44

    Chance Snow Showers

    • 33
    • 46

    Mostly Sunny

    • 35
    • 50

    Partly Sunny

    • 35
    • 49

    Chance Rain Showers

    • 36
    • 51

    Slight Chance Rain Showers

Today 22 Apr Boise Mountains

Patchy fog this morning. Rain Showers. Snow Showers this Morning, then snow Showers with a slight chance of Thunderstorms this afternoon. Snow heavy at Times this morning. Chance of precipitation near 100 percent. Little or no snow accumulation across the lower Elevations, with snow accumulation up to 10 Inches over the Mountains. Much cooler with Highs 36 to 49. Breezy.

Tonight 22 Apr Boise Mountains

Rain and snow Showers in the Evening, then snow Showers likely after midnight. Areas of fog. Chance of precipitation 90 percent. No snow accumulation across the lower Elevations, with snow accumulation up to 5 Inches over the Mountains. Lows 23 to 37.

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  • Temperature Forecast NOAA

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Mount Heinen Temperature Statistics

April Temperature

Boise Air Terminal (19.3 miles)

  • Lowest 17 April, 2026

    29.6 °F

  • Average April

    51.4 °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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