Walnut Woods State Park Weather Forecast
- 68
- 95
Slight Chance Thunderstorms
- 72
- 92
Mostly Sunny
- 74
- 98
Hot
- 64
- 88
Mostly Sunny
- 63
- 84
Partly Sunny
- 66
- 85
Chance Thunderstorms
Today 18 Jul Polk
Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. West Winds around 5 Mph, becoming north this afternoon. Chance of rain 20 percent. Heat index Values up to 103 this afternoon.
Tonight 18 Jul Polk
Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Humid with Lows in the upper 60s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.
Walnut Woods State Park Temperature Statistics
July Temperature
Des Moines International Airport (4.3 miles)
Lowest 3 July, 2026
66.7 °FAverage July
79.4 °FHighest 1 July, 2026
91.7 °F
Climate (2021–2026)
Des Moines International Airport (4.3 miles)
Average Low 2021–2026
43.7 °FAverage 2021–2026
53.5 °FAverage High 2021–2026
63.5 °F