Air Quality Forecast Guidance for Chicago, IL

Displayed below are NOAA-EPA Air Quality Forecast Guidance values for
latitude: 41.88 N, longitude: 87.63 W.
Ozone concentrations are presented in parts per billion (PPB).
Public comments and suggestions are encouraged.

A FAQ page is available.
More information...
24Hr Maximum
Ending
Maximum 1 Hour Average Ozone
Concentration (PPB)*
Maximum 8 Hour Average Ozone
Concentration (PPB)*
Tomorrow
(Ending 03/02, 4Z)
32
30
*Due to grid interpolation methods, the maximum 1- and 8-hour ozone concentration values may have
values slightly higher or lower than those of the corresponding hourly ozone concentrations.

Ozone
Ending Time
1 Hour Average Ozone
Concentration (PPB)

12Z Model Run
8 Hour Average Ozone
Concentration (PPB)

12Z Model Run
Sat, 02 Mar  03 AM
16
20
Sat, 02 Mar  04 AM
17
19
Sat, 02 Mar  05 AM
14
18
Sat, 02 Mar  06 AM
6
16
Sat, 02 Mar  07 AM
2
14
Sat, 02 Mar  08 AM
6
12
Sat, 02 Mar  09 AM
12
11
Sat, 02 Mar  10 AM
15
11
Sat, 02 Mar  11 AM
22
12
Sat, 02 Mar  12 PM
30
13
Sat, 02 Mar  01 PM
35
16
Sat, 02 Mar  02 PM
39
20
Sat, 02 Mar  03 PM
42
25
Sat, 02 Mar  04 PM
41
29
Sat, 02 Mar  05 PM
38
33
Sat, 02 Mar   06 PM
32
35
Sat, 02 Mar   07 PM
28
36
Sat, 02 Mar   08 PM
27
35
Sat, 02 Mar   09 PM
27
34
Sat, 02 Mar   10 PM
24
32
Sat, 02 Mar   11 PM
24
30
Sun, 03 Mar   12 AM
27
28
Sun, 03 Mar   01 AM
26
27
Sun, 03 Mar   02 AM
24
26
Sun, 03 Mar   03 AM
23
25
Smoke
Ending Time
(Local Time)
1 Hour Surface Smoke (µg/m³)
06Z Model Run
1 Hour Column-Integrated
Smoke (µg/m³)

06Z Model Run
Sat, 02 Mar  03 AM
0
0
Sat, 02 Mar  04 AM
0
0
Sat, 02 Mar  05 AM
0
0
Sat, 02 Mar  06 AM
0
0
Sat, 02 Mar  07 AM
0
0
Sat, 02 Mar  08 AM
0
0
Sat, 02 Mar  09 AM
0
0
Sat, 02 Mar  10 AM
0
0
Sat, 02 Mar  11 AM
0
0
Sat, 02 Mar  12 PM
0
0
Sat, 02 Mar  01 PM
0
0
Sat, 02 Mar  02 PM
0
0
Sat, 02 Mar  03 PM
0
0
Sat, 02 Mar  04 PM
0
0
Sat, 02 Mar  05 PM
0
0
Sat, 02 Mar  06 PM
0
0
Sat, 02 Mar  07 PM
0
0

National Weather Service Air Quality Program Page
Environmental Protection Agency AirNow Forecast Page
Graphical Air Quality Forecast Guidance
FAQ


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