| NWS Forecast for: Grundy County Issued by: National Weather Service Chicago, IL Last Update: 1005 PM CDT Sun Sep 6 2026 |  |
| Rest Of Tonight: Partly cloudy. Lows around 60. East winds around 5 mph. Labor Day: Partly cloudy. Highs in the lower 80s. East winds around 5 mph. Monday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the lower 60s. East winds around 5 mph. Tuesday: Partly cloudy. Highs in the upper 80s. South winds 5 to 10 mph. Tuesday Night: Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers after midnight. Lows in the lower 70s. South winds 5 to 10 mph. Chance of precipitation 20 percent. Wednesday: Mostly cloudy. Showers likely with a chance of thunderstorms in the morning, then a slight chance of showers in the afternoon. Highs in the upper 80s. Chance of precipitation 60 percent. Wednesday Night: Mostly cloudy with a slight chance of showers in the evening, then partly cloudy after midnight. Lows in the lower 60s. Chance of precipitation 20 percent. Thursday: Partly cloudy. Highs in the lower 80s. Thursday Night: Mostly clear. Lows in the upper 50s. Friday: Mostly sunny. Highs in the mid 80s. Friday Night: Mostly clear. Lows in the lower 60s. Saturday: Partly cloudy in the morning, then becoming mostly sunny. Highs in the upper 80s. Saturday Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers. Lows in the mid 60s. Chance of precipitation 30 percent. Sunday: Partly cloudy with a chance of showers. Highs in the mid 80s. Chance of precipitation 30 percent. | |
| Zone Forecast: Grundy County | |
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