Capitol Hill Weather Forecast
- 54
- 69
Rain Showers Likely
- 54
- 69
Mostly Cloudy
- 55
- 72
Partly Sunny
- 56
- 73
Rain Likely
- 54
- 66
Rain
- 53
- 66
Chance Rain
Today 29 Aug City of Seattle
Cloudy in the morning then becoming partly sunny. Showers in the morning. A slight chance of Thunderstorms through the day. A chance of Showers in the afternoon. Rainfall Amounts less than a tenth of an inch Likely, except higher Amounts possible in Thunderstorms. Highs in the mid 60s to lower 70s. Light wind.
Tonight 29 Aug City of Seattle
Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower to mid 50s. Light wind becoming south to 10 Mph 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