Hyas Lake Weather Forecast

    • 39
    • 52

    Chance Rain Showers

    • 42
    • 68

    Sunny

    • 43
    • 74

    Sunny

    • 43
    • 68

    Mostly Sunny

    • 44
    • 70

    Mostly Sunny

    • 45
    • 73

    Partly Sunny

    • 42
    • 66

    Slight Chance Rain Showers

Today 15 Sep Upper Slopes of the Eastern Washington Cascades Crest

Partly cloudy with a 20 percent chance of rain Showers. Lows in the 40s. Highs in the mid 50s to mid 60s.

Tonight 15 Sep Upper Slopes of the Eastern Washington Cascades Crest

Partly cloudy. Lows in the upper 30s to lower 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hyas Lake Temperature Statistics

September Temperature

Stampede Pass (22.4 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    50.2 °F

  • Highest 9 September, 2026

    71.1 °F

Climate (2021–2026)

Stampede Pass (22.4 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    41.5 °F

  • Average High 2021–2026

    48.2 °F
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