Chicago PM2.5 AQI < 100 Jul 17-21, 2026

Name: Will Chicago's PM2.5 Air Quality Index be below 100 between July 17, 2026 and July 21, 2026, inclusive, according to AirNow.gov?
Start: 2026-07-19T11:01:27.337Z
End: 2026-07-21T00:00:00.000Z

Will Chicago's PM2.5 Air Quality Index be below 100 between July 17, 2026 and July 21, 2026, inclusive, according to AirNow.gov?

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Closes Jul 20, 2026, 8:00 PM ET