Lake Valhalla Weather Forecast

    • 49
    • 70

    Becoming Sunny

    • 50
    • 74

    Mostly Sunny

    • 45
    • 69

    Partly Sunny

    • 40
    • 59

    Partly Sunny

    • 39
    • 53

    Mostly Cloudy

    • 40
    • 53

    Slight Chance Rain Showers

    • 37
    • 50

    Slight Chance Rain Showers

Today 19 Sep Western Chelan County

Partly cloudy. Highs in the 60s.

Tonight 19 Sep Western Chelan County

Mostly clear. Lows in the lower 50s to lower 60s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Valhalla Temperature Statistics

September Temperature

Stampede Pass (37.3 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    50.1 °F

  • Highest 9 September, 2026

    71.1 °F

Climate (2021–2026)

Stampede Pass (37.3 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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