Speelyi Beach Park Weather Forecast

    • 43
    • 65

    Mostly Cloudy

    • 47
    • 70

    Mostly Cloudy

    • 46
    • 74

    Mostly Sunny

    • 48
    • 76

    Mostly Sunny

    • 50
    • 80

    Mostly Sunny

    • 48
    • 76

    Partly Sunny

    • 47
    • 73

    Partly Sunny

Today 30 Sep Lower Slopes of the Eastern Washington Cascades Crest

Sunny. Highs in the upper 50s to upper 60s, except in the upper 60s to lower 70s Valleys. Southwest wind 5 to 10 Mph.

Tonight 30 Sep Lower Slopes of the Eastern Washington Cascades Crest

Partly cloudy. Lows in the 40s. Light wind.

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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

    51.7 °F

  • Highest 20 September, 2026

    73 °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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