Stay updated with real-time air quality in La Grange, Illinois featuring accurate data on AQI, PM2.5, PM10, O3, NO2, SO2, and CO levels. Use our interactive map and detailed forecasts to monitor pollution trends, manage health risks, and plan your daily activities with confidence.
Live AQI (Air Quality Index)
25
Good
La Grange, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.82 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
17.10 μg/m³
0
55
155
255
425
605+
27.33 ppb
0
55
71
86
201
201+
0.45 ppb
0
36
76
186
605
1005+
4.23 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
La Grange, Illinois
La Grange, Illinois
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AQI 22
Good
3.87μg/m³
PM2.5
17.33μg/m³
PM10
21.10ppb
O3
0.47ppb
SO2
3.58ppb
NO2
0.19ppm
CO
AQI 22
Good
3.97μg/m³
PM2.5
17.70μg/m³
PM10
21.28ppb
O3
0.46ppb
SO2
3.50ppb
NO2
0.18ppm
CO
AQI 22
Good
3.98μg/m³
PM2.5
17.74μg/m³
PM10
21.08ppb
O3
0.46ppb
SO2
3.43ppb
NO2
0.18ppm
CO
AQI 22
Good
3.94μg/m³
PM2.5
17.67μg/m³
PM10
20.76ppb
O3
0.47ppb
SO2
3.52ppb
NO2
0.19ppm
CO
AQI 22
Good
4.05μg/m³
PM2.5
18.02μg/m³
PM10
21.83ppb
O3
0.46ppb
SO2
3.32ppb
NO2
0.18ppm
CO
AQI 22
Good
3.86μg/m³
PM2.5
17.31μg/m³
PM10
21.09ppb
O3
0.47ppb
SO2
3.63ppb
NO2
0.19ppm
CO
Air quality and pollutant data for Illinois, USA are sourced from ground-based monitors and satellites, adhering to US EPA standards. Machine learning and advanced algorithms enhance the data by incorporating local variables like traffic and population density, ensuring high accuracy and dependability.
Source: Ambee Data Sources
The air quality information for La Grange, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in La Grange, Illinois was at its worst at 02:00:00 on 2026-06-13.
In the last 24 hours, the best air quality in La Grange, Illinois was observed at 11:00:00 on 2026-06-14.
As of now, the AQI in La Grange, Illinois is 24, indicating Good conditions.
La Grange, Illinois air has the highest levels of O3.
Poor air quality in La Grange, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in La Grange, Illinois are currently 3.819 μg/m3.
The PM10 concentration in La Grange, Illinois is 17.097 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in La Grange, Illinois is 0.189 ppm.
Currently, La Grange, Illinois has a sulfur dioxide (SO2) concentration of 0.522 ppb.
The current ozone (O3) level in La Grange, Illinois at the moment is 26.39 ppm.
Nitrogen dioxide (NO2) level in La Grange, Illinois at the moment is 5.506 ppb.
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