Mount Heinen Weather Forecast

    • 70
    • 89

    Partly Sunny

    • 67
    • 86

    Chance Rain Showers

    • 62
    • 75

    Chance Rain Showers

    • 56
    • 74

    Chance Rain Showers

    • 55
    • 69

    Mostly Sunny

    • 58
    • 77

    Partly Sunny

    • 59
    • 76

    Partly Sunny

Today 26 Aug Boise Mountains

Mostly sunny. Patchy smoke. Highs 81 to 96.

Tonight 26 Aug Boise Mountains

Increasing Clouds. Areas of smoke. Lows 49 to 64.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Heinen Temperature Statistics

August Temperature

Boise Air Terminal (19.3 miles)

  • Lowest 3 August, 2026

    54.6 °F

  • Average August

    79.9 °F

  • Highest 1 August, 2026

    101.6 °F

Climate (2021–2026)

Boise Air Terminal (19.3 miles)

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  • Average Low 2021–2026

    44.1 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    66.3 °F
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