Duwamish Waterway Weather Forecast

    • 51
    • 56

    Rain

    • 47
    • 59

    Rain

    • 43
    • 54

    Rain

    • 43
    • 49

    Rain

    • 41
    • 49

    Rain

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    • 47

    Rain

Today 14 Dec City of Seattle

Cloudy with rain likely in the Morning, then cloudy with a chance of rain in the afternoon. Rainfall Amounts less than a tenth of an inch likely. Highs in the lower to mid 50s. South wind 10 to 15 Mph.

Tonight 14 Dec City of Seattle

Cloudy. A slight chance of rain in the Evening, then a chance of rain late in the evening. Rain after midnight. Rainfall Amounts a quarter to a half inch possible. Lows in the lower 50s. Southeast wind 10 to 15 Mph becoming south 10 to 20 Mph with Gusts to 30 Mph after midnight.

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Duwamish Waterway Temperature Statistics

December Temperature

Boeing Field - King County International Airport (0.6 miles)

  • Lowest 1 December, 2025

    34 °F

  • Average December

    49.2 °F

  • Highest 8 December, 2025

    57.9 °F

Climate (2020–Present)

Boeing Field - King County International Airport (0.6 miles)

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  • Average Low 2020–2025

    47 °F

  • Average 2020–2025

    54.1 °F

  • Average High 2020–2025

    61.5 °F
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