Duwamish Waterway Weather Forecast

    • 44
    • 48

    Rain

    • 46
    • 55

    Rain

    • 47
    • 53

    Rain

    • 48
    • 55

    Rain

    • 49
    • 56

    Rain

    • 46
    • 56

    Rain

Today 4 Dec City of Seattle

A chance of rain in the Morning, then rain in the late morning and early afternoon. Rain likely late in the afternoon. Rainfall Amounts a quarter to a half inch possible. Highs in the mid to upper 40s. South wind to 10 Mph.

Tonight 4 Dec City of Seattle

Cloudy with a chance of rain in the Evening, then rain at Times after midnight. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the mid to upper 40s. Light wind becoming south to 10 Mph after midnight.

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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

    41.2 °F

  • Highest 1 December, 2025

    46.9 °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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