Mount Heinen Weather Forecast

    • 34
    • 48

    Increasing Clouds

    • 31
    • 48

    Mostly Sunny

    • 36
    • 48

    Partly Sunny

    • 38
    • 52

    Slight Chance Rain/Snow

    • 38
    • 56

    Mostly Sunny

    • 42
    • 60

    Mostly Sunny

Today 25 Apr Boise Mountains

Patchy fog this morning. Mostly sunny. Highs 43 to 57.

Tonight 25 Apr Boise Mountains

Partly cloudy. A slight chance of snow Showers after midnight. Chance of snow 20 percent. Lows 18 to 33.

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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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