Hyak Weather Forecast

    • 51
    • 67

    Becoming Sunny

    • 51
    • 74

    Sunny

    • 51
    • 75

    Mostly Sunny

    • 52
    • 73

    Partly Sunny

    • 54
    • 77

    Partly Sunny

    • 51
    • 73

    Chance Rain Showers

Today 15 Sep Upper Slopes of the Eastern Washington Cascades Crest

Partly cloudy in the Morning, becoming sunny. Highs in the lower 60s to lower 70s.

Tonight 15 Sep Upper Slopes of the Eastern Washington Cascades Crest

Mostly clear. Lows in the mid 40s to lower 50s. Gusts up to 25 Mph overnight.

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Hyak Temperature Statistics

September Temperature

Stampede Pass (8.1 miles)

  • Lowest 12 September, 2025

    48 °F

  • Average September

    60.6 °F

  • Highest 2 September, 2025

    87.1 °F

Climate (2020–Present)

Stampede Pass (8.1 miles)

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  • Average Low 2020–2025

    36.3 °F

  • Average 2020–2025

    41.6 °F

  • Average High 2020–2025

    48.3 °F
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