Grundy County, IL 7-Day Night Weather Forecast
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Grundy County, IL Weather Forecast


Grundy County, IL Weather Forecast Date: 829 PM CST Mon Mar 02 2026
The area/counties/county of: Grundy, including the cities of: Morris, Coal City, and Minooka.or toggle through each period.
Rest of Tonight... Mostly cloudy. A slight chance of rain late. Near steady temperature in the mid 30s. East winds around 5 mph. Chance of precipitation 20%.
Tuesday... Cloudy. Rain likely, mainly in the morning. Highs in the mid 40s. East winds around 5 mph. Chance of precipitation 70%.
Tuesday Night... Mostly cloudy. A chance of rain showers. Lows in the mid 30s. Northeast winds around 5 mph. Chance of precipitation 50%.
Wednesday... Cloudy. A chance of rain showers. Highs in the lower 50s. East winds 5 to 10 mph. Chance of precipitation 50%.
Wednesday Night... Showers likely with a slight chance of thunderstorms. Lows in the mid 40s. Southeast winds around 5 mph. Chance of precipitation 70%.
Thursday... A slight chance of thunderstorms. Showers. Highs in the lower 60s. Chance of precipitation 80%.
Thursday Night... Mostly cloudy. A slight chance of showers in the evening, then a chance of showers after midnight. Lows in the mid 40s. Chance of precipitation 30%.
Friday... Showers likely with a slight chance of thunderstorms. Highs around 70. Chance of precipitation 70%.
Friday Night... Showers likely in the evening, then showers with a chance of thunderstorms after midnight. Lows in the mid 50s. Chance of precipitation 90%.
Saturday... Mostly cloudy. Showers likely in the morning. Highs in the mid 60s. Temperature falling to around 60 in the afternoon. Chance of precipitation 60%.
Saturday Night... Mostly cloudy. Lows in the lower 40s.
Sunday... Mostly cloudy in the morning, then becoming partly cloudy. Highs in the lower 60s.
Sunday Night... Mostly clear. Lows in the mid 40s.
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