| NWS Forecast for: Southern Cook Issued by: National Weather Service Chicago, IL Last Update: 120 PM CDT Wed Sep 2 2026 |  |
This Afternoon: Mostly sunny. Hot. Near steady temperature in the lower 90s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 103. Tonight: Mostly clear in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms late. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of precipitation 20 percent. Thursday: Partly 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 percent. Heat index values up to 101. Thursday Night: Partly cloudy in the evening, then becoming mostly cloudy. A chance of showers and thunderstorms. Humid with lows in the lower 70s. Southeast winds around 5 mph, becoming east after midnight. Chance of precipitation 50 percent. Friday: Partly cloudy. A chance of showers with a slight chance of thunderstorms in the morning. Humid with highs around 90. East winds around 5 mph, becoming west in the afternoon. Chance of precipitation 30 percent. Friday Night: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of precipitation 50 percent. Saturday: Mostly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of precipitation 20 percent. Saturday Night: Partly cloudy. Lows in the upper 60s. Sunday: Mostly cloudy in the morning, then becoming partly cloudy. Highs in the mid 80s. Sunday Night: Partly cloudy. Lows in the mid 60s. Labor Day: Partly cloudy. Highs in the lower 80s. Monday Night: Partly cloudy. Lows in the mid 60s. Tuesday: Mostly cloudy. Highs in the mid 80s. | |
| Zone Forecast: Southern Cook | |
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