Capitol Hill Weather Forecast

    • 57
    • 78

    Mostly Sunny

    • 58
    • 80

    Mostly Sunny

    • 59
    • 79

    Mostly Cloudy

    • 58
    • 71

    Chance Rain Showers

    • 56
    • 72

    Partly Sunny

    • 57
    • 74

    Partly Sunny

    • 56
    • 75

    Partly Sunny

Today 19 Aug City of Seattle

Mostly cloudy in the morning then becoming mostly sunny. Patchy fog in the morning. Highs in the mid 70s to lower 80s. South wind around 10 Mph becoming northwest in the afternoon.

Tonight 19 Aug City of Seattle

Mostly clear. Lows in the mid 50s to lower 60s. Light wind.

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Capitol Hill Temperature Statistics

August Temperature

Boeing Field - King County International Airport (5 miles)

  • Lowest 3 August, 2026

    55 °F

  • Average August

    68.2 °F

  • Highest 6 August, 2026

    86 °F

Climate (2021–2026)

Boeing Field - King County International Airport (5 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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