Stay updated with real-time air quality in Frankfort, 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)
56
Moderate
Frankfort, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
12.34 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
58.95 μg/m³
0
55
155
255
425
605+
19.14 ppb
0
55
71
86
201
201+
0.35 ppb
0
36
76
186
605
1005+
15.19 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Frankfort, Illinois
Frankfort, Illinois
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AQI 56
Moderate
12.22μg/m³
PM2.5
54.39μg/m³
PM10
19.39ppb
O3
0.36ppb
SO2
15.83ppb
NO2
0.20ppm
CO
AQI 58
Moderate
12.86μg/m³
PM2.5
57.92μg/m³
PM10
19.54ppb
O3
0.33ppb
SO2
17.05ppb
NO2
0.21ppm
CO
AQI 56
Moderate
12.13μg/m³
PM2.5
55.01μg/m³
PM10
19.70ppb
O3
0.37ppb
SO2
16.13ppb
NO2
0.20ppm
CO
AQI 56
Moderate
12.25μg/m³
PM2.5
54.46μg/m³
PM10
18.26ppb
O3
0.33ppb
SO2
15.46ppb
NO2
0.20ppm
CO
AQI 56
Moderate
12.01μg/m³
PM2.5
52.29μg/m³
PM10
20.04ppb
O3
0.33ppb
SO2
13.42ppb
NO2
0.20ppm
CO
AQI 58
Moderate
13.08μg/m³
PM2.5
59.81μg/m³
PM10
18.98ppb
O3
0.32ppb
SO2
16.47ppb
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 Frankfort, Illinois are available every hour.
Frankfort, Illinois experienced its worst air quality at 12:00:00, 2025-12-10.
The best air quality in Frankfort, Illinois was observed at 07:00:00 on 2025-12-09.
The air quality in Frankfort, Illinois right now is Moderate, with an AQI of 56.
In Frankfort, Illinois, PM2.5 is the most frequently found pollutant.
When air quality in Frankfort, Illinois is compromised, staying indoors and wearing a mask can reduce health risks.
Frankfort, Illinois currently has a PM2.5 concentration of 12.335 μg/m3.
Frankfort, Illinois currently has a PM10 concentration of 58.955 μg/m3.
The current carbon monoxide (CO) level in Frankfort, Illinois is 0.199 ppm.
The current sulfur dioxide (SO2) concentration in Frankfort, Illinois is 0.349 ppb.
Frankfort, Illinois currently has an ozone (O3) concentration of 19.142 ppm.
The current level of nitrogen dioxide (NO2) in Frankfort, Illinois is 15.191 ppb.
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