Skip to content

Air Quality Alert Message

Status

Issued Active alert

Start Time

Sun 08/03/2025 01:05 AM EDT

End Time

Mon 08/04/2025 01:00 AM EDT

Impacts

Informational

Full Alert Message

Air Quality Alert Message Relayed by National Weather Service Chicago IL 1205 AM CDT Sun Aug 3 2025 ...AIR QUALITY ALERT IN EFFECT UNTIL MIDNIGHT CDT TONIGHT... The Illinois Environmental Protection Agency has determined that an "Air Pollution Action Day" will remain in effect for the greater Chicago Metropolitan Area through midnight tonight. A Chicago area "Air Pollution Action Day" is declared when weather conditions are such that widespread ozone and or particulate levels are expected to be at or above the Unhealthy for Sensitive Groups category of the Air Quality Index for multiple days. Active children and adults, especially people with pulmonary or respiratory disease such as asthma, should limit prolonged outdoor activity. Area residents are urged to reduce pollution levels. Air quality forecasts, current air quality, and tips on how you can reduce your emissions can be found at www.airnow.gov. Media contact...Illinois EPA.

Technical Header

ILZ005-006-012-013-020-021-103>108-040500- McHenry-Lake IL-Kane-DuPage-Kendall-Grundy-Northern Cook- Central Cook-Southern Cook-Northern Will-Southern Will-Eastern Will- Including the cities of Crystal Lake, Algonquin, McHenry, Woodstock, Waukegan, Buffalo Grove, Mundelein, Gurnee, Aurora, Elgin, Naperville, Wheaton, Downers Grove, Lombard, Carol Stream, Oswego, Yorkville, Plano, Morris, Coal City, Minooka, Evanston, Des Plaines, Schaumburg, Palatine, Northbrook, Chicago, Cicero, Oak Lawn, Oak Park, La Grange, Calumet City, Oak Forest, Lemont, Orland Park, Park Forest, Joliet, Bolingbrook, Plainfield, Mokena, Channahon, Manhattan, Wilmington, Crete, Peotone, and Beecher 1205 AM CDT Sun Aug 3 2025