Chicago, IL Air Quality Index
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| Air Quality Forecast | |
| Forecast Location: Chicago, IL Forecast Agency: Illinois EPA |
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| Two Day Forecast | |
| Day One Forecast | Day Two Forecast |
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Date: 03/21/2026 Type: Particle Pollution (2.5 microns) Index: Moderate AQI Value: 51-100  |
Date: 03/22/2026 Type: Particle Pollution (2.5 microns) Index: Moderate AQI Value: 51-100 |
| Last Update:Fri, 20 Mar 2026 10:30:02 CST | |
| Script courtesy of Michael Holden of Relay Weather. Data courtesy of Airnow.gov |
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Today's Air Quality Forecast
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Today's Air Quality Timed Animation
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| Script courtesy of Michael Holden of Relay Weather. Data courtesy of Airnow.gov |
