Duwamish Waterway Weather Forecast

    • 35
    • 44

    Mostly Cloudy

    • 35
    • 46

    Mostly Cloudy

    • 37
    • 48

    Mostly Cloudy

    • 42
    • 48

    Rain Likely

    • 40
    • 50

    Rain Likely

    • 40
    • 48

    Chance Rain

Today 29 Dec City of Seattle

Mostly cloudy. Patchy fog in the morning. Highs in the mid 40s.

Tonight 29 Dec City of Seattle

Mostly cloudy. Patchy fog after midnight. Lows in the mid 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Duwamish Waterway Temperature Statistics

December Temperature

Boeing Field - King County International Airport (0.6 miles)

  • Lowest 1 December, 2025

    34 °F

  • Average December

    47.2 °F

  • Highest 15 December, 2025

    59 °F

Climate (2020–Present)

Boeing Field - King County International Airport (0.6 miles)

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  • Average Low 2020–2025

    47.1 °F

  • Average 2020–2025

    54.1 °F

  • Average High 2020–2025

    61.5 °F
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