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Illinois

United States

2026-05-18 01:00
AQI (India)
Moderately polluted
Pollutants|Pollens
O3
μg/m³
100.3
PM10
μg/m³
23.8
PM2.5
μg/m³
11.3
CO
μg/m³
125
SO2
μg/m³
1.1
Weather
  • ℃
  • ℉
26℃
69%
28 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (India)
  • Pollen
  • O3
  • PM10
  • PM2.5
  • CO
  • SO2
Places included
Adams County
AQI 31
Alexander County
AQI 24
Bond County
AQI 22
Boone County
AQI 21
Brown County
AQI 22
Bureau County
AQI 22
Calhoun County
AQI 18
Carroll County
AQI 22
Cass County
AQI 21
Champaign County
AQI 124
Christian County
AQI 16
Clark County
AQI 23
Clay County
AQI 21
Clinton County
AQI 97
Coles County
AQI 22
Cook County
AQI 113
Crawford County
AQI 23
Cumberland County
AQI 127
De Witt County
AQI 20
DeKalb County
AQI 21
Douglas County
AQI 20
DuPage County
AQI 22
Edgar County
AQI 22
Edwards County
AQI 21
Effingham County
AQI 120
Fayette County
AQI 22
Ford County
AQI 18
Franklin County
AQI 20
Fulton County
AQI 23
Gallatin County
AQI 20
Greene County
AQI 18
Grundy County
AQI 19
Hamilton County
AQI 20
Hancock County
AQI 21
Hardin County
AQI 72
Henderson County
AQI 21
Henry County
AQI 26
Iroquois County
AQI 22
Jackson County
AQI 65
Jasper County
AQI 77
Jefferson County
AQI 20
Jersey County
AQI 80
Jo Daviess County
AQI 108
Johnson County
AQI 19
Kane County
AQI 21
Kankakee County
AQI 18
Kendall County
AQI 21
Knox County
AQI 24
LaSalle County
AQI 22
Lake County
AQI 73
Lawrence County
AQI 139
Lee County
AQI 21
Livingston County
AQI 18
Logan County
AQI 18
Macon County
AQI 130
Macoupin County
AQI 84
Madison County
AQI 95
Marion County
AQI 21
Marshall County
AQI 94
Mason County
AQI 21
Massac County
AQI 17
McDonough County
AQI 22
McHenry County
AQI 114
McLean County
AQI 120
Menard County
AQI 16
Mercer County
AQI 26
Monroe County
AQI 14
Montgomery County
AQI 60
Morgan County
AQI 21
Moultrie County
AQI 20
Ogle County
AQI 21
Peoria County
AQI 99
Perry County
AQI 19
Piatt County
AQI 20
Pike County
AQI 21
Pope County
AQI 83
Pulaski County
AQI 21
Putnam County
AQI 22
Randolph County
AQI 19
Richland County
AQI 22
Rock Island County
AQI 93
Saline County
AQI 20
Sangamon County
AQI 97
Schuyler County
AQI 22
Scott County
AQI 21
Shelby County
AQI 20
St. Clair County
AQI 86
Stark County
AQI 52
Stephenson County
AQI 21
Tazewell County
AQI 25
Union County
AQI 22
Vermilion County
AQI 22
Wabash County
AQI 125
Warren County
AQI 21
Washington County
AQI 19
Wayne County
AQI 20
White County
AQI 20
Whiteside County
AQI 22
Will County
AQI 114
Williamson County
AQI 21
Winnebago County
AQI 111
Woodford County
AQI 21
Data Sources
http://www.airnow.gov/

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