Speelyi Beach Park Weather Forecast

    • 47
    • 76

    Mostly Sunny

    • 49
    • 79

    Mostly Sunny

    • 51
    • 82

    Mostly Sunny

    • 48
    • 76

    Partly Sunny

    • 45
    • 70

    Partly Sunny

    • 47
    • 69

    Mostly Cloudy

Today 18 Sep Lower Slopes of the Eastern Washington Cascades Crest

Sunny. Highs in the upper 60s to mid 70s, except in the mid to upper 70s Valleys. Northwest wind 5 to 10 Mph with Gusts to around 20 Mph in the Morning, becoming light.

Tonight 18 Sep Lower Slopes of the Eastern Washington Cascades Crest

Mostly clear. Lows in the mid 40s to lower 50s. West wind 5 to 10 Mph in the Evening, becoming light.

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Speelyi Beach Park Temperature Statistics

September Temperature

Stampede Pass (12.4 miles)

  • Lowest 3 September, 2026

    39.9 °F

  • Average September

    49.1 °F

  • Highest 9 September, 2026

    71.1 °F

Climate (2021–2026)

Stampede Pass (12.4 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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