| NWS Forecast for: Grundy County Issued by: National Weather Service Des Moines, IA Last Update: 248 PM CDT Fri Oct 3 2025 | |
| Tonight: Clear. Lows in the mid 60s. South winds 5 to 10 mph. Saturday: Sunny, breezy with highs in the upper 80s. South winds 15 to 25 mph with gusts up to 35 mph. Saturday Night: Clear, breezy with lows in the lower 60s. South winds 15 to 25 mph. Sunday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Breezy with highs in the mid 80s. South winds 15 to 25 mph with gusts up to 35 mph. Chance of rain 20 percent. Sunday Night: Showers likely with a chance of thunderstorms. Lows in the mid 50s. Southwest winds 10 to 15 mph, becoming west after midnight. Chance of rain 70 percent. Monday: Mostly cloudy in the morning, then becoming partly sunny. A chance of showers with a slight chance of thunderstorms. Cooler with highs in the mid 60s. Chance of rain 50 percent. Monday Night: Mostly cloudy with a slight chance of thunderstorms. A chance of showers, mainly in the evening. Lows in the upper 40s. Chance of rain 40 percent. Tuesday: Sunny. Highs in the upper 60s. Tuesday Night: Clear. Lows in the lower 40s. Wednesday: Sunny. Highs in the upper 60s. Wednesday Night: Mostly clear. Lows in the mid 40s. Thursday: Sunny. A slight chance of showers in the morning. Highs around 70. Chance of rain 20 percent. Thursday Night: Partly cloudy with a 20 percent chance of showers. Lows in the lower 50s. Friday: Mostly sunny. A slight chance of showers and thunderstorms in the morning. Highs in the lower 70s. Chance of rain 20 percent. | |
| Zone Forecast: Grundy County | |
Visit your local NWS office at: https://www.weather.gov/desmoines |