East Passage - Des Moines Weather Forecast

    • 53
    • 75

    Sunny

    • 52
    • 72

    Partly Sunny

    • 52
    • 71

    Partly Sunny

    • 52
    • 71

    Partly Sunny

    • 53
    • 70

    Mostly Cloudy

    • 52
    • 68

    Mostly Cloudy

Today 17 Sep Lowlands of Pierce and Southern King Counties

Sunny. Highs in the upper 60s to mid 70s. Light wind becoming north to 10 Mph in the afternoon.

Tonight 17 Sep Lowlands of Pierce and Southern King Counties

Mostly clear. Lows in the upper 40s to mid 50s. Light wind.

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East Passage - Des Moines Temperature Statistics

September Temperature

Seattle, Seattle-Tacoma International Airport (3.1 miles)

  • Lowest 5 September, 2026

    52.6 °F

  • Average September

    62.3 °F

  • Highest 9 September, 2026

    78.7 °F

Climate (2021–2026)

Seattle, Seattle-Tacoma International Airport (3.1 miles)

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  • Average Low 2021–2026

    46.6 °F

  • Average 2021–2026

    53.5 °F

  • Average High 2021–2026

    61.3 °F
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