Capitol Hill Weather Forecast
- 58
- 78
Increasing Clouds
- 56
- 74
Mostly Cloudy
- 55
- 73
Mostly Cloudy
- 54
- 69
Slight Chance Rain
- 54
- 70
Mostly Cloudy
- 55
- 70
Slight Chance Rain
Today 26 Aug City of Seattle
Mostly sunny. Highs in the 70s to lower 80s. South wind to 10 Mph.
Tonight 26 Aug City of Seattle
Partly cloudy. Lows near 60. Southwest wind to 10 Mph becoming south after midnight.
Capitol Hill Temperature Statistics
August Temperature
Boeing Field - King County International Airport (5 miles)
Lowest 3 August, 2026
55 °FAverage August
68.3 °FHighest 6 August, 2026
86 °F
Climate (2021–2026)
Boeing Field - King County International Airport (5 miles)
Average Low 2021–2026
47.2 °FAverage 2021–2026
54.2 °FAverage High 2021–2026
61.6 °F