| NWS Forecast for: Southern Cook Issued by: National Weather Service Chicago, IL Last Update: 141 PM CDT Thu Oct 1 2026 |  |
This Afternoon: Rain likely early in the afternoon. A slight chance of thunderstorms. Rain late. Some thunderstorms may produce heavy rainfall. Rain may be heavy at times late. Highs in the mid 70s. West winds 5 to 10 mph. Chance of precipitation near 100 percent. Tonight: Rain, mainly in the evening. Rain may be heavy at times early in the evening. Lows in the upper 50s. North winds 10 to 15 mph. Chance of precipitation near 100 percent. Friday: Mostly cloudy in the morning, then clearing. Less humid with highs in the mid 60s. North winds 10 to 15 mph. Friday Night: Mostly clear. Lows in the mid 40s. Northeast winds 5 to 10 mph. Saturday: Sunny. Highs in the mid 60s. East winds around 5 mph. Saturday Night: Mostly clear. Lows in the upper 40s. Sunday: Mostly sunny. Highs in the lower 70s. Sunday Night: Mostly clear. Lows in the upper 40s. Monday: Sunny. Highs in the mid 60s. Monday Night: Clear. Lows in the lower 40s. Tuesday: Sunny. Highs in the mid 60s. Tuesday Night: Mostly clear. Lows in the upper 40s. Wednesday: Partly cloudy. Highs in the lower 70s. | |
| Zone Forecast: Southern Cook | |
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