Alki Beach Park Weather Forecast

    • 59
    • 72

    Rain Showers Likely

    • 57
    • 67

    Rain Showers Likely

    • 58
    • 68

    Rain Showers Likely

    • 57
    • 63

    Rain Showers

    • 56
    • 67

    Chance Rain Showers

    • 57
    • 66

    Chance Rain Showers

Today 6 Sep City of Seattle

Mostly cloudy. Haze in the morning. Areas of smoke until late afternoon. A chance of Showers in the Morning, then a slight chance of Showers in the afternoon. Highs in the 70s. Light wind becoming southwest to 10 Mph in the afternoon.

Tonight 6 Sep City of Seattle

Mostly cloudy. A chance of Showers and a slight chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows near 60. Southwest wind to 10 Mph becoming south around 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Alki Beach Park Temperature Statistics

September Temperature

Boeing Field - King County International Airport (5 miles)

  • Lowest 1 September, 2025

    60.1 °F

  • Average September

    67.6 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Boeing Field - King County International Airport (5 miles)

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  • Average Low 2020–2025

    46.9 °F

  • Average 2020–2025

    54 °F

  • Average High 2020–2025

    61.4 °F
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