| NWS Forecast for: Grundy County Issued by: National Weather Service Chicago, IL Last Update: 213 AM CDT Thu Jun 4 2026 | |
Today: Mostly sunny in the morning, then becoming partly cloudy. Highs in the upper 80s. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph with gusts up to 25 mph in the afternoon. Tonight: Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 60s. South winds 10 to 15 mph. Friday: Partly cloudy in the morning, then becoming mostly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Breezy with highs in the mid 80s. Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 70 percent. Friday Night: Showers with a chance of thunderstorms. Lows in the upper 60s. Southwest winds 10 to 15 mph. Chance of precipitation 90 percent. Saturday: Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 80s. West winds 5 to 10 mph. Chance of precipitation 70 percent. Saturday Night: Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of thunderstorms in the evening. A slight chance of showers. Lows in the mid 60s. Chance of precipitation 20 percent. Sunday: Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 40 percent. Sunday Night: Mostly cloudy with a slight chance of thunderstorms. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of precipitation 30 percent. Monday: Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 50 percent. Monday Night: A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows in the upper 60s. Chance of precipitation 40 percent. Tuesday: Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of precipitation 40 percent. Tuesday Night: A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows around 70. Chance of precipitation 30 percent. Wednesday: Mostly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of precipitation 30 percent. | |
| Zone Forecast: Grundy County | |
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