Capitol Park Weather Forecast
- 72
- 91
Chance Thunderstorms
- 70
- 88
Rain Showers
- 67
- 80
Rain Showers
- 68
- 80
Rain Showers Likely
- 68
- 83
Rain Showers Likely
- 65
- 80
Slight Chance Thunderstorms
Today 11 Aug Polk
Partly sunny with a slight chance of Showers and Thunderstorms in the Morning, then sunny in the afternoon. Humid with Highs around 90. South Winds 5 to 10 Mph, becoming northwest in the afternoon. Chance of rain 20 percent. Heat index Values up to 102 in the afternoon.
Tonight 11 Aug Polk
Mostly clear in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Humid with Lows in the lower 70s. East Winds around 5 Mph. Chance of rain 30 percent. Heat index Values up to 100 early in the evening.
Capitol Park Temperature Statistics
August Temperature
Des Moines International Airport (5 miles)
Lowest 8 August, 2026
62.1 °FAverage August
73.2 °FHighest 7 August, 2026
86.6 °F
Climate (2021–2026)
Des Moines International Airport (5 miles)
Average Low 2021–2026
43.7 °FAverage 2021–2026
53.5 °FAverage High 2021–2026
63.5 °F