Lake Union Weather Forecast

    • 45
    • 59

    Chance Rain

    • 45
    • 61

    Partly Sunny

    • 51
    • 64

    Rain

    • 53
    • 64

    Rain

    • 48
    • 60

    Rain

    • 45
    • 55

    Rain

    • 43
    • 54

    Rain

Today 20 Oct City of Seattle

Mostly cloudy. A chance of rain. Highs near 60. South wind to 10 Mph.

Tonight 20 Oct City of Seattle

Mostly cloudy with a chance of rain in the Evening, then partly cloudy after midnight. Lows in the mid to upper 40s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Union Temperature Statistics

October Temperature

Boeing Field - King County International Airport (6.2 miles)

  • Lowest 15 October, 2025

    37 °F

  • Average October

    55.3 °F

  • Highest 7 October, 2025

    77 °F

Climate (2020–Present)

Boeing Field - King County International Airport (6.2 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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