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Chicago Chokes on Wildfire Smoke Again
19 Jul
Summary
- Chicago air quality ranked second worst globally Sunday.
- An Air Quality Alert is in effect until midnight Sunday.
- Smoke could continue to affect Chicago air into Monday.
Chicago experienced a return of choking smoke from Canadian wildfires on Sunday, June 23, 2026, after a brief respite. Early Sunday morning, IQAir ranked the city's air quality as the second worst globally, though less severe than Thursday's conditions.
An Air Quality Alert remained in effect through midnight Sunday. The air quality index stood at 153, an unhealthy level. Individuals with respiratory or heart conditions, and those planning outdoor activities, were advised to take precautions. Smoke levels can fluctuate, so air quality may not always appear clear. Lingering smoke is possible into Monday.
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