Mount Heinen Weather Forecast

    • 36
    • 52

    Partly Sunny

    • 44
    • 65

    Mostly Cloudy

    • 49
    • 70

    Partly Sunny

    • 41
    • 71

    Chance Rain Showers

    • 36
    • 46

    Rain Showers Likely

    • 35
    • 46

    Chance Rain Showers

Today 18 Apr Boise Mountains

Partly sunny. Not as cool with Highs 46 to 61.

Tonight 18 Apr Boise Mountains

Mostly clear. Lows 20 to 35.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Heinen Temperature Statistics

April Temperature

Boise Air Terminal (19.3 miles)

  • Lowest 3 April, 2026

    30.7 °F

  • Average April

    51.6 °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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