| NWS Forecast for: Grundy County Issued by: National Weather Service Chicago, IL Last Update: 853 PM CDT Thu Apr 9 2026 |  |
Rest Of Tonight: A chance of showers early in the evening. A chance of thunderstorms. Showers after midnight. Lows around 50. East winds 5 to 10 mph, becoming northwest after midnight. Chance of precipitation near 100 percent. Friday: Mostly cloudy. A chance of showers early in the morning. Highs in the upper 50s. North winds 5 to 10 mph. Chance of precipitation 50 percent. Friday Night: Partly cloudy in the evening, then clearing. Lows in the upper 30s. Northeast winds around 5 mph. Saturday: Mostly sunny in the morning, then becoming mostly cloudy. Highs in the lower 60s. Southeast winds 5 to 10 mph. Saturday Night: Mostly cloudy. A slight chance of showers. Lows in the mid 50s. Southeast winds 5 to 10 mph, increasing to south 10 to 15 mph after midnight. Chance of precipitation 20 percent. Sunday: Mostly cloudy. A chance of showers with a slight chance of thunderstorms in the afternoon. Breezy with highs in the upper 70s. Chance of precipitation 30 percent. Sunday Night: Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Breezy with lows in the lower 60s. Chance of precipitation 50 percent. Monday: Mostly cloudy. A chance of showers in the morning. Highs around 80. Chance of precipitation 50 percent. Monday Night: A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the mid 60s. Chance of precipitation 40 percent. Tuesday: Mostly cloudy. A chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Breezy with highs in the mid 80s. Chance of precipitation 60 percent. Tuesday Night: A chance of thunderstorms in the evening. Showers likely. Lows in the lower 60s. Chance of precipitation 70 percent. Wednesday: Mostly cloudy with a chance of showers. Breezy with highs in the mid 70s. Chance of precipitation 50 percent. Wednesday Night: Partly cloudy. A chance of showers in the evening. Lows in the lower 50s. Chance of precipitation 40 percent. Thursday: Partly cloudy. Highs in the upper 70s. | |
| Zone Forecast: Grundy County | |
Visit your local NWS office at: https://www.weather.gov/lot |