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Chapin Park, IL 7-Day Night Weather Forecast
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Chapin Park, IL Weather Forecast
Chapin Park, IL Weather Forecast Date: 511 AM CDT Sat Aug 08 2026
The area/counties/county of: Grundy, including the cities of: Morris, Coal City, and Minooka.or toggle through each period.
Today... Partly cloudy in the morning then clearing. Patchy fog early in the morning. Highs in the mid 80s. Northwest winds 5 to 10 mph.
Tonight... Partly cloudy. Lows in the mid 60s. North winds around 5 mph, becoming south after midnight.
Sunday... Mostly cloudy. A slight chance of showers and thunderstorms in the morning. A chance of showers and thunderstorms in the afternoon. Humid with highs in the upper 80s. South winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Chance of precipitation 50%.
Sunday Night... Mostly cloudy. A chance of showers in the evening. A chance of thunderstorms. Showers likely after midnight. Humid with lows in the lower 70s. Southwest winds 5 to 10 mph. Chance of precipitation 70%.
Monday... Mostly cloudy. A chance of showers and thunderstorms. Humid with highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of precipitation 40%. Heat index values up to 103.
Monday Night... Showers likely with a chance of thunderstorms. Lows in the lower 70s. Chance of precipitation 70%.
Tuesday... 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. Highs in the mid 80s. Chance of precipitation 60%.
Tuesday Night... Showers likely with a chance of thunderstorms. Lows in the upper 60s. Chance of precipitation 70%.
Wednesday... Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 50%.
Wednesday Night... Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. Lows in the mid 60s. Chance of precipitation 40%.
Thursday... Mostly cloudy with a chance of showers. Highs in the upper 70s. Chance of precipitation 40%.
Thursday Night... Mostly cloudy. A chance of showers after midnight. Lows in the lower 60s. Chance of precipitation 30%.
POP = Probability of Precipitation
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