7-Day Zone Forecast for Polk County (Text-Only)
NWS Forecast for: Polk County
Issued by: National Weather Service Des Moines, IA
Last Update: 245 AM CDT Sun Jul 19 2026
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Today: Mostly sunny. Humid with highs in the upper 80s. Northeast winds around 5 mph, becoming east around 5 mph this afternoon.

Tonight: Partly cloudy. Humid with lows around 70. Southeast winds around 5 mph.

Monday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 107 in the afternoon.

Monday Night: Partly cloudy. A chance of showers and thunderstorms, mainly in the evening. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph, becoming west after midnight. Chance of rain 50 percent. Heat index values up to 103 early in the evening.

Tuesday: Sunny with highs in the mid 80s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Tuesday Night: Mostly clear. Lows in the mid 60s.

Wednesday: Mostly sunny. Highs in the lower 80s.

Wednesday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s.

Thursday: Partly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent.

Thursday Night: Mostly cloudy. A chance of showers with a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 40 percent.

Friday: Partly sunny with a slight chance of thunderstorms. A chance of showers, mainly in the morning. Highs in the lower 80s. Chance of rain 40 percent.

Friday Night: Partly cloudy. Lows in the mid 60s.

Saturday: Mostly sunny. Highs in the upper 80s.







Zone Forecast: Polk County

Visit your local NWS office at: https://www.weather.gov/desmoines