| NWS Forecast for: Union County Issued by: National Weather Service Des Moines, IA Last Update: 258 PM CDT Wed Aug 19 2026 |  |
Tonight: Mostly cloudy with showers likely with a chance of thunderstorms early, then partly cloudy with a chance of showers and thunderstorms this evening. Partly cloudy after midnight. Humid with lows in the lower 60s. Northeast winds 5 to 10 mph. Chance of rain 70 percent. Thursday: Mostly sunny. Humid with highs in the lower 80s. East winds around 5 mph, becoming south around 5 mph in the afternoon. Thursday Night: Partly cloudy. Humid with lows in the mid 60s. South winds around 5 mph. Friday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. West winds around 5 mph. Chance of rain 20 percent. Friday Night: Partly cloudy with a chance of showers and thunderstorms. Humid with lows in the mid 60s. Northwest winds around 5 mph, becoming northeast after midnight. Chance of rain 40 percent. Saturday: Sunny. Highs in the lower 80s. Saturday Night: Mostly clear in the evening, then partly cloudy with a slight chance of showers after midnight. Lows in the lower 60s. Chance of rain 20 percent. Sunday: Partly sunny. A slight chance of showers in the morning. Highs in the upper 70s. Chance of rain 20 percent. Sunday Night: Mostly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. Monday: A slight chance of thunderstorms in the morning. Mostly sunny with a slight chance of showers. Highs in the lower 80s. Chance of rain 20 percent. Monday Night: Partly cloudy. Lows in the mid 60s. Tuesday: Mostly sunny. Highs in the mid 80s. Tuesday Night: Partly cloudy. Lows in the upper 60s. Wednesday: Mostly sunny. Highs in the mid 80s. | |
| Zone Forecast: Union County | |
Visit your local NWS office at: https://www.weather.gov/desmoines |