Air Quality Alert Extended in Chicago Due to Canadian Wildfire Smoke
Air Quality Alert Extended in Chicago Due to Canadian Wildfire Smoke
US · Published Jul 20, 2026
Smoke from Canadian wildfires has returned to Chicago, causing air quality concerns throughout the area.
Early Sunday morning, IQAir ranked Chicago's air quality as the second worst globally, with an air quality index (AQI) of 153, which falls into the 'unhealthy' range.

Impact & Risks

The wildfire smoke poses health risks, particularly for sensitive groups such as individuals with asthma, heart disease, or other respiratory conditions. Outdoor activities may exacerbate symptoms, and strenuous exercise is discouraged. The EPA warns that air quality may worsen intermittently, potentially affecting much of Illinois. Residents are advised to limit outdoor exposure and take precautions to protect their health. The smoke is expected to linger into Monday, creating ongoing challenges for those spending time outdoors.

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