| NWS Forecast for: Union County Issued by: National Weather Service Des Moines, IA Last Update: 533 PM CDT Wed May 20 2026 |  |
Tonight: Partly cloudy this evening, then becoming mostly cloudy. Lows in the mid 40s. Northeast winds 5 to 10 mph. Thursday: Mostly cloudy. Highs around 60. East winds 10 to 15 mph. Thursday Night: Cloudy. Showers likely with a slight chance of thunderstorms after midnight. Lows in the upper 40s. East winds 10 to 15 mph. Chance of rain 70 percent. Friday: Showers with a slight chance of thunderstorms in the morning, then a chance of showers in the afternoon. Highs in the lower 60s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 80 percent. Friday Night: Mostly cloudy with a 50 percent chance of showers. Lows around 50. Southeast winds 5 to 10 mph. Saturday: Mostly cloudy in the morning, then becoming partly sunny. Highs in the lower 70s. Saturday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows around 50. Sunday: Sunny. Highs in the upper 70s. Sunday Night: Mostly clear. Lows in the mid 50s. Memorial Day: Mostly sunny. Highs in the lower 80s. Monday Night: Partly cloudy. A slight chance of showers after midnight. Lows in the upper 50s. Chance of rain 20 percent. Tuesday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent. Tuesday Night: Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 60s. Chance of rain 20 percent. Wednesday: Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 40 percent. | |
| Zone Forecast: Union County | |
Visit your local NWS office at: https://www.weather.gov/desmoines |