| NWS Forecast for: Cass County Issued by: National Weather Service Des Moines, IA Last Update: 1138 AM CDT Sun Sep 6 2026 | |
Rest Of Today: Partly sunny late this morning, then becoming mostly cloudy. A slight chance of showers and thunderstorms late this morning, then a chance of showers and thunderstorms this afternoon. Highs in the mid 80s. Southeast winds 5 to 10 mph. Chance of rain 50 percent. Heat index values up to 100. Tonight: Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Humid with lows in the mid 60s. East winds 5 to 10 mph with gusts up to 25 mph. Chance of rain 70 percent. Labor Day: Mostly sunny. A slight chance of showers and thunderstorms in the morning. Locally heavy rainfall possible in the morning. Humid with highs in the upper 80s. Southeast winds 10 to 15 mph. Chance of rain 20 percent. Monday Night: Partly cloudy. Humid with lows in the lower 70s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Tuesday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 90s. South winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 103 in the afternoon. Tuesday Night: A chance of thunderstorms. Showers. Lows in the upper 60s. Chance of rain 90 percent. Heat index values up to 100 early in the evening. Wednesday: Mostly sunny. Highs in the lower 80s. Wednesday Night: Partly cloudy. A slight chance of showers after midnight. Lows in the lower 60s. Chance of rain 20 percent. Thursday: Sunny. Highs in the lower 80s. Thursday Night: Mostly clear. Lows in the lower 60s. Friday: Sunny. A slight chance of showers and thunderstorms in the morning. Highs in the mid 80s. Chance of rain 20 percent. Friday Night: Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent. Saturday: Mostly sunny with a slight chance of thunderstorms. A slight chance of showers in the morning, then a chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 30 percent. | |
| Zone Forecast: Cass County | |
Visit your local NWS office at: https://www.weather.gov/desmoines |