| NWS Forecast for: Grundy County Issued by: National Weather Service Des Moines, IA Last Update: 612 PM CDT Mon Mar 23 2026 |  |
| Tonight: Mostly cloudy. Lows in the lower 30s. South winds 5 to 10 mph. Tuesday: Partly sunny in the morning, then becoming mostly cloudy. Highs in the upper 50s. South winds 5 to 10 mph. Tuesday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 40s. South winds around 10 mph. Wednesday: Partly sunny. Highs in the lower 70s. Southwest winds 5 to 10 mph. Wednesday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 50s. South winds 5 to 10 mph. Thursday: Partly sunny. A chance of showers in the afternoon. Highs in the upper 60s. Chance of rain 30 percent. Thursday Night: Mostly cloudy and breezy. Much cooler with lows around 30. Friday: Partly sunny in the morning, then clearing. Much cooler with highs in the mid 40s. Friday Night: Mostly clear. Lows in the mid 20s. Saturday: Sunny. Highs in the mid 50s. Saturday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s. Sunday: Mostly sunny. Highs in the lower 60s. Sunday Night: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the lower 40s. Monday: Partly sunny. Highs in the mid 60s. | |
| Zone Forecast: Grundy County | |
Visit your local NWS office at: https://www.weather.gov/desmoines |