Weather World
Village of Summit, ILSummit, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Summit, IL Weather Forecast
Summit, IL Weather Forecast Date: 901 PM CDT Wed Sep 02 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.
Rest of Tonight... Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 70s. Southwest winds 5 to 10 mph. Chance of precipitation 20%.
Thursday... Mostly cloudy. A slight chance of showers and thunderstorms in the morning. A chance of showers and thunderstorms late. Hot, humid with highs in the lower 90s. West winds 5 to 10 mph. Chance of precipitation 30%.
Thursday Night... Mostly cloudy. A chance of showers and thunderstorms. Humid with lows in the lower 70s. Southeast winds 5 to 10 mph, becoming east after midnight. Chance of precipitation 50%.
Friday... Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Humid with highs in the upper 80s inland, but only in the lower 80s near the lake. East winds 5 to 10 mph. Chance of precipitation 30%.
Friday Night... Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Humid with lows in the lower 70s. East winds around 5 mph. Chance of precipitation 50%.
Saturday... Mostly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 80s inland, but only around 80 near the lake. Chance of precipitation 20%.
Saturday Night... Partly cloudy. Lows around 70.
Sunday... Mostly cloudy in the morning, then becoming partly cloudy. Highs in the lower 80s.
Sunday Night... Partly cloudy. Lows in the upper 60s.
Labor Day... Partly cloudy. Highs in the lower 80s.
Monday Night... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 60s.
Tuesday... Mostly cloudy. Highs in the lower 80s.
Tuesday Night... Partly cloudy. A chance of showers after midnight. Lows around 70. Chance of precipitation 30%.
POP = Probability of Precipitation
Summit Radar Loop
Use the map search tool if you want to place a location marker on the radar map...