Stay updated with real-time air quality in Oak Forest, 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)
33
Good
Oak Forest, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
5.88 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
25.55 μg/m³
0
55
155
255
425
605+
22.75 ppb
0
55
71
86
201
201+
0.52 ppb
0
36
76
186
605
1005+
8.83 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Moderate
Oak Forest, Illinois
Oak Forest, Illinois
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AQI 33
Good
5.61μg/m³
PM2.5
24.13μg/m³
PM10
23.00ppb
O3
0.52ppb
SO2
8.64ppb
NO2
0.20ppm
CO
AQI 33
Good
6.13μg/m³
PM2.5
26.89μg/m³
PM10
23.00ppb
O3
0.51ppb
SO2
8.65ppb
NO2
0.20ppm
CO
AQI 33
Good
5.95μg/m³
PM2.5
20.09μg/m³
PM10
22.54ppb
O3
0.55ppb
SO2
8.23ppb
NO2
0.20ppm
CO
AQI 33
Good
6.08μg/m³
PM2.5
26.61μg/m³
PM10
22.45ppb
O3
0.52ppb
SO2
8.98ppb
NO2
0.20ppm
CO
AQI 33
Good
6.30μg/m³
PM2.5
27.83μg/m³
PM10
22.93ppb
O3
0.51ppb
SO2
8.67ppb
NO2
0.20ppm
CO
AQI 33
Good
5.55μg/m³
PM2.5
23.79μg/m³
PM10
23.05ppb
O3
0.52ppb
SO2
8.60ppb
NO2
0.20ppm
CO
The air quality data for Illinois, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Oak Forest, Illinois are available every hour.
Oak Forest, Illinois experienced its worst air quality at 02:00:00, 2026-01-16.
The best air quality in Oak Forest, Illinois was observed at 03:00:00 on 2026-01-16.
The air quality in Oak Forest, Illinois right now is Good, with an AQI of 33.
In Oak Forest, Illinois, PM2.5 is the most frequently found pollutant.
When air quality in Oak Forest, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Oak Forest, Illinois currently has a PM2.5 concentration of 5.877 μg/m3.
Oak Forest, Illinois currently has a PM10 concentration of 25.55 μg/m3.
The current carbon monoxide (CO) level in Oak Forest, Illinois is 0.197 ppm.
The current sulfur dioxide (SO2) concentration in Oak Forest, Illinois is 0.521 ppb.
Oak Forest, Illinois currently has an ozone (O3) concentration of 22.75 ppm.
The current level of nitrogen dioxide (NO2) in Oak Forest, Illinois is 8.826 ppb.
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