Waptus Lake Weather Forecast

    • 48
    • 74

    Sunny

    • 49
    • 79

    Sunny

    • 48
    • 74

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 51
    • 78

    Mostly Sunny

    • 47
    • 72

    Partly Sunny

Today 16 Sep Upper Slopes of the Eastern Washington Cascades Crest

Sunny. Highs in the lower 60s to lower 70s. Gusts up to 20 Mph in the afternoon.

Tonight 16 Sep Upper Slopes of the Eastern Washington Cascades Crest

Clear. Lows in the 40s.

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Waptus Lake Temperature Statistics

September Temperature

Stampede Pass (16.8 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    49.5 °F

  • Highest 9 September, 2026

    71.1 °F

Climate (2021–2026)

Stampede Pass (16.8 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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