Northwest Seattle Weather Forecast

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Today 4 Mar City of Seattle

Rain at Times in the Morning, then Showers and a slight chance of Thunderstorms in the afternoon. Rainfall Amounts a quarter to a half inch Possible, except higher Amounts possible in Thunderstorms. Highs in the lower to mid 50s. South wind around 10 Mph becoming southwest in the afternoon.

Tonight 4 Mar City of Seattle

Rain likely in the Evening, then mostly cloudy with a chance of rain after midnight. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the lower to mid 40s. Light wind.

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Northwest Seattle Temperature Statistics

March Temperature

Boeing Field - King County International Airport (10.6 miles)

  • Lowest 1 March, 2026

    37.9 °F

  • Average March

    45.6 °F

  • Highest 1 March, 2026

    55 °F

Climate (2021–Present)

Boeing Field - King County International Airport (10.6 miles)

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  • Average Low 2021–2026

    47.1 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    61.6 °F
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