McLean Institute, IL 7-Day Night Weather Forecast
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McLean Institute, IL Weather Forecast


McLean Institute, IL Weather Forecast Date: 120 PM CDT Sun Aug 30 2026
The area/counties/county of: Central Cook, including the cities of: Chicago, Cicero, Oak Lawn, Oak Park, and La Grange.or toggle through each period.
This Afternoon... Scattered showers early in the afternoon. A slight chance of thunderstorms. Numerous showers late. Breezy. Highs in the lower 80s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 60%.
Tonight... Mostly cloudy. Scattered showers with a slight chance of thunderstorms early in the evening, then isolated showers late in the evening. Lows in the mid 70s. South winds around 10 mph. Chance of precipitation 40%.
Monday... Mostly cloudy in the morning, then becoming partly cloudy. A slight chance of showers and thunderstorms early in the morning. A slight chance of showers and thunderstorms late. Highs in the upper 80s. Southwest winds 10 to 15 mph. Chance of precipitation 20%.
Monday Night... Partly cloudy. A slight chance of showers and thunderstorms after midnight. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of precipitation 20%.
Tuesday... Mostly cloudy in the morning, then becoming partly cloudy. A slight chance of showers and thunderstorms in the morning. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of precipitation 20%. Heat index values up to 100.
Tuesday Night... Partly cloudy in the evening, then clearing. Lows in the mid 70s.
Wednesday... Partly cloudy. Highs in the lower 90s.
Wednesday Night... Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows in the mid 70s. Chance of precipitation 40%.
Thursday... Partly cloudy with a chance of showers and thunderstorms in the morning, then mostly cloudy in the afternoon. Highs in the upper 80s. Chance of precipitation 40%.
Thursday Night... Mostly cloudy in the evening, then becoming partly cloudy. A chance of thunderstorms in the evening. A chance of showers. Lows in the lower 70s. Chance of precipitation 50%.
Friday... Partly cloudy. Highs in the mid 80s.
Friday Night... Partly cloudy. Lows in the lower 70s.
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