Capitol Hill Weather Forecast

    • 52
    • 62

    Rain

    • 49
    • 61

    Rain Showers

    • 48
    • 62

    Partly Sunny

    • 48
    • 63

    Partly Sunny

    • 50
    • 63

    Mostly Cloudy

    • 51
    • 63

    Chance Rain

Today 24 Sep City of Seattle

Mostly cloudy. A slight chance of rain late in the afternoon. Highs in the lower to mid 60s. Light wind becoming north to 10 Mph in the afternoon.

Tonight 24 Sep City of Seattle

A chance of rain in the Evening, then rain at Times in the late evening and early morning. Rain likely in the morning. Rainfall Amounts a tenth to a quarter of an inch possible. Lows in the lower to mid 50s. Light wind.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Capitol Hill Temperature Statistics

September Temperature

Boeing Field - King County International Airport (5 miles)

  • Lowest 19 September, 2026

    52 °F

  • Average September

    62.2 °F

  • Highest 9 September, 2026

    78.1 °F

Climate (2021–2026)

Boeing Field - King County International Airport (5 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    54.2 °F

  • Average High 2021–2026

    61.6 °F
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