| NWS Forecast for: Mahaska County Issued by: National Weather Service Des Moines, IA Last Update: 833 PM CDT Wed Aug 19 2026 | |
Rest Of Tonight: Partly cloudy early this evening, then clearing. Lows in the lower 60s. Northeast winds around 5 mph. Thursday: Sunny with highs in the lower 80s. East winds around 5 mph, becoming south in the afternoon. Thursday Night: Mostly clear. A chance of showers with a slight chance of thunderstorms after midnight. Humid with lows in the mid 60s. South winds around 5 mph. Chance of rain 30 percent. Friday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. West winds 5 to 10 mph. Chance of rain 20 percent. Friday Night: Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Humid with lows in the mid 60s. Northwest winds around 5 mph. Chance of rain 20 percent. Saturday: Sunny. Highs in the lower 80s. Saturday Night: Mostly clear. Lows in the lower 60s. Sunday: Mostly sunny. Highs around 80. Sunday Night: Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of showers. A slight chance of thunderstorms after midnight. Lows in the lower 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 lower 60s. Tuesday: Mostly sunny. Highs in the mid 80s. Tuesday Night: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 60s. Chance of rain 20 percent. Wednesday: Mostly sunny. Highs in the mid 80s. | |
| Zone Forecast: Mahaska County | |
Visit your local NWS office at: https://www.weather.gov/desmoines |