Mount Heinen Weather Forecast

    • 67
    • 85

    Areas Smoke

    • 68
    • 89

    Areas Smoke

    • 68
    • 89

    Mostly Sunny

    • 66
    • 85

    Mostly Sunny

    • 66
    • 85

    Mostly Sunny

    • 66
    • 84

    Partly Sunny

    • 62
    • 80

    Partly Sunny

Today 31 Aug Boise Mountains

Sunny. Patchy smoke. Highs 78 to 93.

Tonight 31 Aug Boise Mountains

Mostly clear. Areas of smoke. Lows 47 to 62.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mount Heinen Temperature Statistics

August Temperature

Boise Air Terminal (19.3 miles)

  • Lowest 8 August, 2025

    51.7 °F

  • Average August

    77.7 °F

  • Highest 12 August, 2025

    102.7 °F

Climate (2020–Present)

Boise Air Terminal (19.3 miles)

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  • Average Low 2020–2025

    43.7 °F

  • Average 2020–2025

    54.5 °F

  • Average High 2020–2025

    65.8 °F
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