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Illinois

United States

2026-05-18 20:00
AQI (India)
Moderately polluted
Pollutants|Pollens
O3
μg/m³
112.1
PM10
μg/m³
14.2
PM2.5
μg/m³
3.9
SO2
μg/m³
0.6
CO
μg/m³
0
Weather
  • ℃
  • ℉
22℃
77%
23 kph
2 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • SO2
  • CO
Places included
Adams County
AQI 38
Alexander County
AQI 24
Bond County
AQI 17
Boone County
AQI 6
Brown County
AQI 22
Bureau County
AQI 19
Calhoun County
AQI 6
Carroll County
AQI 7
Cass County
AQI 21
Champaign County
AQI 102
Christian County
AQI 5
Clark County
AQI 23
Clay County
AQI 19
Clinton County
AQI 94
Coles County
AQI 20
Cook County
AQI 124
Crawford County
AQI 23
Cumberland County
AQI 91
De Witt County
AQI 5
DeKalb County
AQI 6
Douglas County
AQI 5
DuPage County
AQI 6
Edgar County
AQI 20
Edwards County
AQI 20
Effingham County
AQI 97
Fayette County
AQI 22
Ford County
AQI 4
Franklin County
AQI 14
Fulton County
AQI 21
Gallatin County
AQI 19
Greene County
AQI 6
Grundy County
AQI 5
Hamilton County
AQI 14
Hancock County
AQI 21
Hardin County
AQI 52
Henderson County
AQI 19
Henry County
AQI 27
Iroquois County
AQI 20
Jackson County
AQI 31
Jasper County
AQI 58
Jefferson County
AQI 14
Jersey County
AQI 143
Jo Daviess County
AQI 149
Johnson County
AQI 19
Kane County
AQI 5
Kankakee County
AQI 4
Kendall County
AQI 6
Knox County
AQI 20
LaSalle County
AQI 21
Lake County
AQI 149
Lawrence County
AQI 53
Lee County
AQI 19
Livingston County
AQI 4
Logan County
AQI 5
Macon County
AQI 120
Macoupin County
AQI 120
Madison County
AQI 98
Marion County
AQI 21
Marshall County
AQI 93
Mason County
AQI 21
Massac County
AQI 14
McDonough County
AQI 22
McHenry County
AQI 139
McLean County
AQI 114
Menard County
AQI 5
Mercer County
AQI 27
Monroe County
AQI 12
Montgomery County
AQI 74
Morgan County
AQI 21
Moultrie County
AQI 5
Ogle County
AQI 6
Peoria County
AQI 108
Perry County
AQI 6
Piatt County
AQI 5
Pike County
AQI 20
Pope County
AQI 58
Pulaski County
AQI 19
Putnam County
AQI 20
Randolph County
AQI 6
Richland County
AQI 21
Rock Island County
AQI 108
Saline County
AQI 14
Sangamon County
AQI 133
Schuyler County
AQI 22
Scott County
AQI 20
Shelby County
AQI 5
St. Clair County
AQI 75
Stark County
AQI 51
Stephenson County
AQI 6
Tazewell County
AQI 7
Union County
AQI 22
Vermilion County
AQI 5
Wabash County
AQI 58
Warren County
AQI 19
Washington County
AQI 6
Wayne County
AQI 14
White County
AQI 14
Whiteside County
AQI 7
Will County
AQI 102
Williamson County
AQI 19
Winnebago County
AQI 146
Woodford County
AQI 6
Data Sources
http://www.airnow.gov/

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