South - Lake Union Weather Forecast

    • 51
    • 67

    Increasing Clouds

    • 50
    • 68

    Mostly Cloudy

    • 52
    • 73

    Partly Sunny

    • 52
    • 71

    Mostly Cloudy

    • 51
    • 71

    Partly Sunny

    • 51
    • 72

    Partly Sunny

Today 7 May City of Seattle

Mostly cloudy in the morning then becoming sunny. Highs in the 60s. South wind to 10 Mph in the morning becoming light.

Tonight 7 May City of Seattle

Mostly cloudy. Lows near 50. Light wind becoming south to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South - Lake Union Temperature Statistics

May Temperature

Boeing Field - King County International Airport (5.6 miles)

  • Lowest 2 May, 2026

    52 °F

  • Average May

    66.6 °F

  • Highest 4 May, 2026

    78.1 °F

Climate (2021–Present)

Boeing Field - King County International Airport (5.6 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    61.7 °F
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