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Chicago faces a heat wave with poor air quality due to wildfire smoke and ozone; temperatures may hit mid-90s.
Chicago faces poor air quality and sweltering heat today and tomorrow, followed by scattered storms heading into the weekend.
ABC7 Chicago's Air Quality Tracker provides real-time updates on the latest air quality data available from government monitors across the city and the region.
As of Thursday morning, Chicago, Detroit and Washington, D.C. were ranked as the three cities with the worst air quality in the world, according to IQ Air's Air Quality Index.
A Chicago Air Quality Alert has been extended through Friday as smoke from Canada wildfires has pushed the AQI into unhealthy levels across the region.
Low: 68.   Tuesday opens with plenty of sunshine but some cottony cumulus clouds arrive on the scene by/during the ...