Duwamish Weather Forecast

    • 54
    • 74

    Decreasing Clouds

    • 54
    • 74

    Partly Sunny

    • 55
    • 73

    Partly Sunny

    • 53
    • 69

    Partly Sunny

    • 54
    • 69

    Mostly Cloudy

    • 54
    • 70

    Chance Rain

Today 19 Sep Lowlands of Pierce and Southern King Counties

Mostly cloudy. Highs in the mid 60s to lower 70s. Light wind.

Tonight 19 Sep Lowlands of Pierce and Southern King Counties

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Duwamish Temperature Statistics

September Temperature

Boeing Field - King County International Airport (2.5 miles)

  • Lowest 5 September, 2026

    53.1 °F

  • Average September

    62.4 °F

  • Highest 9 September, 2026

    78.1 °F

Climate (2021–2026)

Boeing Field - King County International Airport (2.5 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    61.6 °F
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