Illinois air quality today
Today's readings across Illinois: Swansea has the highest reading at Moderate, and 186 of 190 tracked cities rate Good. Click any city for the pollutants behind its number and what they mean for time outside.
Cities in Illinois
| City | Air quality today | EPA level |
|---|---|---|
| Swansea Air Quality | Moderateas of Jul 28 | 2 of 6 |
| Shiloh Air Quality | Moderateas of Jul 28 | 2 of 6 |
| Maryville Air Quality | Moderateas of Jul 28 | 2 of 6 |
| Columbia Air Quality | Moderateas of Jul 28 | 2 of 6 |
| Chicago Air Quality | Goodas of Jul 28 | 1 of 6 |
| Rockford Air Quality | Goodas of Jul 28 | 1 of 6 |
| Aurora Air Quality | Goodas of Jul 28 | 1 of 6 |
| Springfield Air Quality | Goodas of Jul 28 | 1 of 6 |
| Joliet Air Quality | Goodas of Jul 28 | 1 of 6 |
| Naperville Air Quality | Goodas of Jul 28 | 1 of 6 |
| Champaign Air Quality | Goodas of Jul 28 | 1 of 6 |
| Bloomington Air Quality | Goodas of Jul 28 | 1 of 6 |
| Elgin Air Quality | Goodas of Jul 28 | 1 of 6 |
| Waukegan Air Quality | Goodas of Jul 28 | 1 of 6 |
| Decatur Air Quality | Goodas of Jul 28 | 1 of 6 |
| Cicero Air Quality | Goodas of Jul 28 | 1 of 6 |
| Alton Air Quality | Goodas of Jul 28 | 1 of 6 |
| Schaumburg Air Quality | Goodas of Jul 28 | 1 of 6 |
| Arlington Heights Air Quality | Goodas of Jul 28 | 1 of 6 |
| Kankakee Air Quality | Goodas of Jul 28 | 1 of 6 |
| Palatine Air Quality | Goodas of Jul 28 | 1 of 6 |
| Skokie Air Quality | Goodas of Jul 28 | 1 of 6 |
| Des Plaines Air Quality | Goodas of Jul 28 | 1 of 6 |
| Oak Lawn Air Quality | Goodas of Jul 28 | 1 of 6 |
| Tinley Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Wheaton Air Quality | Goodas of Jul 28 | 1 of 6 |
| Oak Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Hoffman Estates Air Quality | Goodas of Jul 28 | 1 of 6 |
| Downers Grove Air Quality | Goodas of Jul 28 | 1 of 6 |
| Glenview Air Quality | Goodas of Jul 28 | 1 of 6 |
| Plainfield Air Quality | Goodas of Jul 28 | 1 of 6 |
| Lombard Air Quality | Goodas of Jul 28 | 1 of 6 |
| Buffalo Grove Air Quality | Goodas of Jul 28 | 1 of 6 |
| Moline Air Quality | Goodas of Jul 28 | 1 of 6 |
| Romeoville Air Quality | Goodas of Jul 28 | 1 of 6 |
| Dekalb Air Quality | Goodas of Jul 28 | 1 of 6 |
| Crystal Lake Air Quality | Goodas of Jul 28 | 1 of 6 |
| Park Ridge Air Quality | Goodas of Jul 28 | 1 of 6 |
| Streamwood Air Quality | Goodas of Jul 28 | 1 of 6 |
| Wheeling Air Quality | Goodas of Jul 28 | 1 of 6 |
| Carpentersville Air Quality | Goodas of Jul 28 | 1 of 6 |
| Rock Island Air Quality | Goodas of Jul 28 | 1 of 6 |
| Oswego Air Quality | Goodas of Jul 28 | 1 of 6 |
| Calumet City Air Quality | Goodas of Jul 28 | 1 of 6 |
| Northbrook Air Quality | Goodas of Jul 28 | 1 of 6 |
| Woodridge Air Quality | Goodas of Jul 28 | 1 of 6 |
| Glendale Heights Air Quality | Goodas of Jul 28 | 1 of 6 |
| Pekin Air Quality | Goodas of Jul 28 | 1 of 6 |
| Mundelein Air Quality | Goodas of Jul 28 | 1 of 6 |
| Niles Air Quality | Goodas of Jul 28 | 1 of 6 |
| Highland Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Galesburg Air Quality | Goodas of Jul 28 | 1 of 6 |
| Lake In The Hills Air Quality | Goodas of Jul 28 | 1 of 6 |
| Burbank Air Quality | Goodas of Jul 28 | 1 of 6 |
| Danville Air Quality | Goodas of Jul 28 | 1 of 6 |
| Huntley Air Quality | Goodas of Jul 28 | 1 of 6 |
| Wilmette Air Quality | Goodas of Jul 28 | 1 of 6 |
| Oak Forest Air Quality | Goodas of Jul 28 | 1 of 6 |
| Vernon Hills Air Quality | Goodas of Jul 28 | 1 of 6 |
| Batavia Air Quality | Goodas of Jul 28 | 1 of 6 |
| Granite City Air Quality | Goodas of Jul 28 | 1 of 6 |
| Lockport Air Quality | Goodas of Jul 28 | 1 of 6 |
| West Chicago Air Quality | Goodas of Jul 28 | 1 of 6 |
| Homer Glen Air Quality | Goodas of Jul 28 | 1 of 6 |
| Melrose Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Belvidere Air Quality | Goodas of Jul 28 | 1 of 6 |
| South Elgin Air Quality | Goodas of Jul 28 | 1 of 6 |
| Elmwood Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Rolling Meadows Air Quality | Goodas of Jul 28 | 1 of 6 |
| Freeport Air Quality | Goodas of Jul 28 | 1 of 6 |
| Blue Island Air Quality | Goodas of Jul 28 | 1 of 6 |
| Loves Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Maywood Air Quality | Goodas of Jul 28 | 1 of 6 |
| Roselle Air Quality | Goodas of Jul 28 | 1 of 6 |
| Villa Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Yorkville Air Quality | Goodas of Jul 28 | 1 of 6 |
| Darien Air Quality | Goodas of Jul 28 | 1 of 6 |
| Geneva Air Quality | Goodas of Jul 28 | 1 of 6 |
| Dolton Air Quality | Goodas of Jul 28 | 1 of 6 |
| Park Forest Air Quality | Goodas of Jul 28 | 1 of 6 |
| East Moline Air Quality | Goodas of Jul 28 | 1 of 6 |
| Libertyville Air Quality | Goodas of Jul 28 | 1 of 6 |
| Frankfort Air Quality | Goodas of Jul 28 | 1 of 6 |
| Mokena Air Quality | Goodas of Jul 28 | 1 of 6 |
| Harvey Air Quality | Goodas of Jul 28 | 1 of 6 |
| Crest Hill Air Quality | Goodas of Jul 28 | 1 of 6 |
| Homewood Air Quality | Goodas of Jul 28 | 1 of 6 |
| Deerfield Air Quality | Goodas of Jul 28 | 1 of 6 |
| Ottawa Air Quality | Goodas of Jul 28 | 1 of 6 |
| Matteson Air Quality | Goodas of Jul 28 | 1 of 6 |
| East St. Louis Air Quality | Goodas of Jul 28 | 1 of 6 |
| Sycamore Air Quality | Goodas of Jul 28 | 1 of 6 |
| Bourbonnais Air Quality | Goodas of Jul 28 | 1 of 6 |
| Godfrey Air Quality | Goodas of Jul 28 | 1 of 6 |
| Lemont Air Quality | Goodas of Jul 28 | 1 of 6 |
| Bridgeview Air Quality | Goodas of Jul 28 | 1 of 6 |
| Westchester Air Quality | Goodas of Jul 28 | 1 of 6 |
| Country Club Hills Air Quality | Goodas of Jul 28 | 1 of 6 |
| Mattoon Air Quality | Goodas of Jul 28 | 1 of 6 |
| Morris Air Quality | Goodas of Jul 28 | 1 of 6 |
| Chatham Air Quality | Goodas of Jul 28 | 1 of 6 |
| Hickory Hills Air Quality | Goodas of Jul 28 | 1 of 6 |
| Lindenhurst Air Quality | Goodas of Jul 28 | 1 of 6 |
| Warrenville Air Quality | Goodas of Jul 28 | 1 of 6 |
| Midlothian Air Quality | Goodas of Jul 28 | 1 of 6 |
| Beach Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Wood Dale Air Quality | Goodas of Jul 28 | 1 of 6 |
| Hazel Crest Air Quality | Goodas of Jul 28 | 1 of 6 |
| Canton Air Quality | Goodas of Jul 28 | 1 of 6 |
| Western Springs Air Quality | Goodas of Jul 28 | 1 of 6 |
| La Grange Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Lincolnwood Air Quality | Goodas of Jul 28 | 1 of 6 |
| Minooka Air Quality | Goodas of Jul 28 | 1 of 6 |
| Winnetka Air Quality | Goodas of Jul 28 | 1 of 6 |
| Kewanee Air Quality | Goodas of Jul 28 | 1 of 6 |
| Effingham Air Quality | Goodas of Jul 28 | 1 of 6 |
| Centralia Air Quality | Goodas of Jul 28 | 1 of 6 |
| Plano Air Quality | Goodas of Jul 28 | 1 of 6 |
| Pontiac Air Quality | Goodas of Jul 28 | 1 of 6 |
| Schiller Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Taylorville Air Quality | Goodas of Jul 28 | 1 of 6 |
| Burr Ridge Air Quality | Goodas of Jul 28 | 1 of 6 |
| Coal Valley Air Quality | Goodas of Jul 28 | 1 of 6 |
| Millstadt Air Quality | Goodas of Jul 28 | 1 of 6 |
| Girard Air Quality | Goodas of Jul 28 | 1 of 6 |
| Waterloo Air Quality | Goodas of Jul 28 | 1 of 6 |
| Sugar Grove Air Quality | Goodas of Jul 28 | 1 of 6 |
| Oregon Air Quality | Goodas of Jul 28 | 1 of 6 |
| Saint Charles Air Quality | Goodas of Jul 28 | 1 of 6 |
| Roxbury Air Quality | Goodas of Jul 28 | 1 of 6 |
| Winfield Air Quality | Goodas of Jul 28 | 1 of 6 |
| Carbon Air Quality | Goodas of Jul 28 | 1 of 6 |
| Clarendon Hills Air Quality | Goodas of Jul 28 | 1 of 6 |
| Elwood Air Quality | Goodas of Jul 28 | 1 of 6 |
| Crete Air Quality | Goodas of Jul 28 | 1 of 6 |
| New Boston Air Quality | Goodas of Jul 28 | 1 of 6 |
| Manteno Air Quality | Goodas of Jul 28 | 1 of 6 |
| La Salle Air Quality | Goodas of Jul 28 | 1 of 6 |
| Auburn Air Quality | Goodas of Jul 28 | 1 of 6 |
| Savoy Air Quality | Goodas of Jul 28 | 1 of 6 |
| Marengo Air Quality | Goodas of Jul 28 | 1 of 6 |
| Cherry Valley Air Quality | Goodas of Jul 28 | 1 of 6 |
| Dundee Air Quality | Goodas of Jul 28 | 1 of 6 |
| Lake Villa Air Quality | Goodas of Jul 28 | 1 of 6 |
| Harrisburg Air Quality | Goodas of Jul 28 | 1 of 6 |
| Benton Air Quality | Goodas of Jul 28 | 1 of 6 |
| Cottage Hills Air Quality | Goodas of Jul 28 | 1 of 6 |
| Long Grove Air Quality | Goodas of Jul 28 | 1 of 6 |
| Niantic Air Quality | Goodas of Jul 28 | 1 of 6 |
| German Valley Air Quality | Goodas of Jul 28 | 1 of 6 |
| Tennessee Air Quality | Goodas of Jul 28 | 1 of 6 |
| Gibson City Air Quality | Goodas of Jul 28 | 1 of 6 |
| Lincolnshire Air Quality | Goodas of Jul 28 | 1 of 6 |
| Lyons Air Quality | Goodas of Jul 28 | 1 of 6 |
| Ursa Air Quality | Goodas of Jul 28 | 1 of 6 |
| Warsaw Air Quality | Goodas of Jul 28 | 1 of 6 |
| Monticello Air Quality | Goodas of Jul 28 | 1 of 6 |
| Saint Anne Air Quality | Goodas of Jul 28 | 1 of 6 |
| Pittsfield Air Quality | Goodas of Jul 28 | 1 of 6 |
| Marshall Air Quality | Goodas of Jul 28 | 1 of 6 |
| Sherman Air Quality | Goodas of Jul 28 | 1 of 6 |
| Paris Air Quality | Goodas of Jul 28 | 1 of 6 |
| Hoopeston Air Quality | Goodas of Jul 28 | 1 of 6 |
| West Union Air Quality | Goodas of Jul 28 | 1 of 6 |
| Fithian Air Quality | Goodas of Jul 28 | 1 of 6 |
| Poplar Grove Air Quality | Goodas of Jul 28 | 1 of 6 |
| South Chicago Air Quality | Goodas of Jul 28 | 1 of 6 |
| Wilmington Air Quality | Goodas of Jul 28 | 1 of 6 |
| Baylis Air Quality | Goodas of Jul 28 | 1 of 6 |
| Sublette Air Quality | Goodas of Jul 28 | 1 of 6 |
| Rochester Air Quality | Goodas of Jul 28 | 1 of 6 |
| Dawson Air Quality | Goodas of Jul 28 | 1 of 6 |
| Brookport Air Quality | Goodas of Jul 28 | 1 of 6 |
| Freeburg Air Quality | Goodas of Jul 28 | 1 of 6 |
| Mineral Air Quality | Goodas of Jul 28 | 1 of 6 |
| Sullivan Air Quality | Goodas of Jul 28 | 1 of 6 |
| Oak Brook Air Quality | Goodas of Jul 28 | 1 of 6 |
| Tampico Air Quality | Goodas of Jul 28 | 1 of 6 |
| Morrison Air Quality | Goodas of Jul 28 | 1 of 6 |
| Dupo Air Quality | Goodas of Jul 28 | 1 of 6 |
| Lake Bluff Air Quality | Goodas of Jul 28 | 1 of 6 |
| Manhattan Air Quality | Goodas of Jul 28 | 1 of 6 |
| Hometown Air Quality | Goodas of Jul 28 | 1 of 6 |
| Peotone Air Quality | Goodas of Jul 28 | 1 of 6 |
| Geneseo Air Quality | Goodas of Jul 28 | 1 of 6 |
| Mansfield Air Quality | Goodas of Jul 28 | 1 of 6 |
| Mcleansboro Air Quality | Goodas of Jul 28 | 1 of 6 |
| West Peoria Air Quality | Goodas of Jul 28 | 1 of 6 |
| Johnston City Air Quality | Goodas of Jul 28 | 1 of 6 |
| Palos Park Air Quality | Goodas of Jul 28 | 1 of 6 |
| Peoria Air Quality | No live reading | Not available |
| Round Lake Beach Air Quality | No live reading | Not available |
| Evanston Air Quality | No live reading | Not available |
| Bolingbrook Air Quality | No live reading | Not available |
| Orland Park Air Quality | No live reading | Not available |
| Berwyn Air Quality | No live reading | Not available |
| Mount Prospect Air Quality | No live reading | Not available |
| Normal Air Quality | No live reading | Not available |
| Elmhurst Air Quality | No live reading | Not available |
| Belleville Air Quality | No live reading | Not available |
| Bartlett Air Quality | No live reading | Not available |
| Carol Stream Air Quality | No live reading | Not available |
| Quincy Air Quality | No live reading | Not available |
| Urbana Air Quality | No live reading | Not available |
| Hanover Park Air Quality | No live reading | Not available |
| Addison Air Quality | No live reading | Not available |
| St. Charles Air Quality | No live reading | Not available |
| O'fallon Air Quality | No live reading | Not available |
| Elk Grove Village Air Quality | No live reading | Not available |
| North Chicago Air Quality | No live reading | Not available |
| Gurnee Air Quality | No live reading | Not available |
| Algonquin Air Quality | No live reading | Not available |
| Lansing Air Quality | No live reading | Not available |
| Glen Ellyn Air Quality | No live reading | Not available |
| Mchenry Air Quality | No live reading | Not available |
| New Lenox Air Quality | No live reading | Not available |
| Chicago Heights Air Quality | No live reading | Not available |
| Edwardsville Air Quality | No live reading | Not available |
| Woodstock Air Quality | No live reading | Not available |
| Morton Grove Air Quality | No live reading | Not available |
| Zion Air Quality | No live reading | Not available |
| Westmont Air Quality | No live reading | Not available |
| Collinsville Air Quality | No live reading | Not available |
| Lisle Air Quality | No live reading | Not available |
| Machesney Park Air Quality | No live reading | Not available |
| East Peoria Air Quality | No live reading | Not available |
| Bloomingdale Air Quality | No live reading | Not available |
| Carbondale Air Quality | No live reading | Not available |
| Montgomery Air Quality | No live reading | Not available |
| South Holland Air Quality | No live reading | Not available |
| Grayslake Air Quality | No live reading | Not available |
| Lake Zurich Air Quality | No live reading | Not available |
| Evergreen Park Air Quality | No live reading | Not available |
| Brookfield Air Quality | No live reading | Not available |
| Lake Forest Air Quality | No live reading | Not available |
| Alsip Air Quality | No live reading | Not available |
| Round Lake Air Quality | No live reading | Not available |
| Bensenville Air Quality | No live reading | Not available |
| North Aurora Air Quality | No live reading | Not available |
| Bellwood Air Quality | No live reading | Not available |
| Franklin Park Air Quality | No live reading | Not available |
| Shorewood Air Quality | No live reading | Not available |
| Palos Hills Air Quality | No live reading | Not available |
| Cary Air Quality | No live reading | Not available |
| Jacksonville Air Quality | No live reading | Not available |
| Charleston Air Quality | No live reading | Not available |
| Cahokia Heights Air Quality | No live reading | Not available |
| Hinsdale Air Quality | No live reading | Not available |
| Marion Air Quality | No live reading | Not available |
| Morton Air Quality | No live reading | Not available |
| Fairview Heights Air Quality | No live reading | Not available |
| La Grange Air Quality | No live reading | Not available |
| Washington Air Quality | No live reading | Not available |
| Prospect Heights Air Quality | No live reading | Not available |
| Bradley Air Quality | No live reading | Not available |
| Norridge Air Quality | No live reading | Not available |
| Dixon Air Quality | No live reading | Not available |
| Macomb Air Quality | No live reading | Not available |
| Antioch Air Quality | No live reading | Not available |
| Sterling Air Quality | No live reading | Not available |
| Mount Vernon Air Quality | No live reading | Not available |
| Chicago Ridge Air Quality | No live reading | Not available |
| Wauconda Air Quality | No live reading | Not available |
| Forest Park Air Quality | No live reading | Not available |
| Channahon Air Quality | No live reading | Not available |
| Glen Carbon Air Quality | No live reading | Not available |
| Lincoln Air Quality | No live reading | Not available |
| Richton Park Air Quality | No live reading | Not available |
| Northlake Air Quality | No live reading | Not available |
| Rantoul Air Quality | No live reading | Not available |
| Justice Air Quality | No live reading | Not available |
| Streator Air Quality | No live reading | Not available |
| Herrin Air Quality | No live reading | Not available |
| Palos Heights Air Quality | No live reading | Not available |
| River Forest Air Quality | No live reading | Not available |
| Markham Air Quality | No live reading | Not available |
| Fulton Air Quality | No live reading | Not available |
| Willowbrook Air Quality | No live reading | Not available |
| Somonauk Air Quality | No live reading | Not available |
| Astoria Air Quality | No live reading | Not available |
| Greenville Air Quality | No live reading | Not available |
| Dunlap Air Quality | No live reading | Not available |
| Kinsman Air Quality | No live reading | Not available |
| Monmouth Air Quality | No live reading | Not available |
| Jerseyville Air Quality | No live reading | Not available |
| Barrington Air Quality | No live reading | Not available |
| Illinois City Air Quality | No live reading | Not available |
| Aledo Air Quality | No live reading | Not available |
| Olney Air Quality | No live reading | Not available |
| Fox River Grove Air Quality | No live reading | Not available |
| Dalzell Air Quality | No live reading | Not available |
| Riverside Air Quality | No live reading | Not available |
| East Saint Louis Air Quality | No live reading | Not available |
| Albers Air Quality | No live reading | Not available |
| Spring Grove Air Quality | No live reading | Not available |
| Ramsey Air Quality | No live reading | Not available |
| Arenzville Air Quality | No live reading | Not available |
| Makanda Air Quality | No live reading | Not available |
| White Hall Air Quality | No live reading | Not available |
| Moro Air Quality | No live reading | Not available |
| Mount Carmel Air Quality | No live reading | Not available |
| Troy Air Quality | No live reading | Not available |
| Burlington Air Quality | No live reading | Not available |
| Stillman Valley Air Quality | No live reading | Not available |
| Ohio Air Quality | No live reading | Not available |
| Kempton Air Quality | No live reading | Not available |
| Farmingdale Air Quality | No live reading | Not available |
| Forsyth Air Quality | No live reading | Not available |
| Rosemont Air Quality | No live reading | Not available |
| Olympia Fields Air Quality | No live reading | Not available |
| Red Bud Air Quality | No live reading | Not available |
| Downs Air Quality | No live reading | Not available |
| Kincaid Air Quality | No live reading | Not available |
| Long Lake Air Quality | No live reading | Not available |
| Staunton Air Quality | No live reading | Not available |
| Bunker Hill Air Quality | No live reading | Not available |
| Highwood Air Quality | No live reading | Not available |
| Winnebago Air Quality | No live reading | Not available |
| Golden Air Quality | No live reading | Not available |
| Mahomet Air Quality | No live reading | Not available |
| Princeton Air Quality | No live reading | Not available |
| Nashville Air Quality | No live reading | Not available |
| Menard Air Quality | No live reading | Not available |
| Harvard Air Quality | No live reading | Not available |
| Benson Air Quality | No live reading | Not available |
| Clinton Air Quality | No live reading | Not available |
| Milan Air Quality | No live reading | Not available |
| Galena Air Quality | No live reading | Not available |
| Rockton Air Quality | No live reading | Not available |
| Cobden Air Quality | No live reading | Not available |
| Pecatonica Air Quality | No live reading | Not available |
| Dakota Air Quality | No live reading | Not available |
| Mettawa Air Quality | No live reading | Not available |
| Martinton Air Quality | No live reading | Not available |
| Steger Air Quality | No live reading | Not available |
| Hampshire Air Quality | No live reading | Not available |
| Custer Air Quality | No live reading | Not available |
Readings use the EPA's six-level scale, from Good (1) to Hazardous (6), and update daily. Cities without a reading refresh the next time their page loads.
How to read these numbers
The air quality index tracks pollution: ozone, fine particles (PM2.5), dust, and exhaust. Good and Moderate days are fine for almost everyone. At Unhealthy for Sensitive Groups, people with asthma or a heart condition feel it first. Unhealthy and above means everyone should cut back time outside.
Pollen is not part of this score. A Good air day in Illinois can still be a rough allergy day, so check Illinois pollen levels too before you plan a long day outside.