| NWS Forecast for: Story County Issued by: National Weather Service Des Moines, IA Last Update: 128 PM CDT Fri Aug 14 2026 |  |
This Afternoon: Thunderstorms likely with a chance of showers. Some thunderstorms may produce heavy rainfall. Near steady temperature in the mid 70s. Southeast winds 5 to 10 mph. Chance of rain 60 percent. Tonight: Showers and thunderstorms. Some thunderstorms may produce heavy rainfall. Humid with lows around 70. East winds 5 to 10 mph. Chance of rain 80 percent. Saturday: Mostly cloudy in the morning, then partly sunny with a slight chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. Southwest winds around 5 mph, becoming northwest in the afternoon. Chance of rain 20 percent. Heat index values up to 104 in the afternoon. Saturday Night: Mostly cloudy with a chance of showers. Thunderstorms likely, mainly in the evening. Humid with lows in the upper 60s. Northwest winds around 5 mph. Chance of rain 70 percent. Heat index values up to 101 early in the evening. Sunday: Mostly sunny. Humid with highs in the lower 80s. Northwest winds 5 to 10 mph. Sunday Night: Mostly clear. Lows in the lower 60s. Monday: Sunny. Highs in the lower 80s. Monday Night: Mostly clear in the evening, then partly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 60s. Chance of rain 30 percent. Tuesday: Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent. Tuesday Night: A chance of thunderstorms. Showers likely. Lows in the mid 60s. Chance of rain 70 percent. Wednesday: Mostly cloudy in the morning, then becoming partly sunny. A slight chance of showers and thunderstorms. Highs in the upper 70s. Chance of rain 20 percent. Wednesday Night: Partly cloudy. Lows around 60. Thursday: Partly sunny. Highs in the mid 70s. | |
| Zone Forecast: Story County | |
Visit your local NWS office at: https://www.weather.gov/desmoines |