| NWS Forecast for: Grundy County Issued by: National Weather Service Des Moines, IA Last Update: 129 PM CDT Sat Oct 3 2026 | |
| This Afternoon: Sunny. Near steady temperature in the upper 60s. South winds 10 to 15 mph with gusts up to 25 mph. Tonight: Partly cloudy in the evening, then clearing. Lows in the lower 50s. Southwest winds 5 to 10 mph, becoming west after midnight. Sunday: Sunny. Highs in the mid 60s. North winds 5 to 10 mph. Sunday Night: Clear. Lows in the lower 40s. Northwest winds around 5 mph in the evening, becoming light and variable. Monday: Sunny. Highs in the mid 60s. Light and variable winds, becoming south around 5 mph in the afternoon. Monday Night: Clear. Lows in the upper 40s. Tuesday: Sunny. Highs in the lower 70s. Tuesday Night: Mostly clear. Lows in the mid 50s. Wednesday: Sunny. Highs in the lower 70s. Wednesday Night: Partly cloudy. Lows around 50. Thursday: Mostly sunny. Highs around 70. Thursday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s. Friday: Sunny. Highs around 70. | |
| Zone Forecast: Grundy County | |
Visit your local NWS office at: https://www.weather.gov/desmoines |