Stay updated with real-time air quality in Rantoul, 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)
40
Good
Rantoul, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.32 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.91 μg/m³
0
55
155
255
425
605+
42.88 ppb
0
55
71
86
201
201+
0.79 ppb
0
36
76
186
605
1005+
4.58 ppb
0
54
101
361
1250
2050+
0.20 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Rantoul, Illinois
Rantoul, Illinois
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AQI 40
Good
4.12μg/m³
PM2.5
18.25μg/m³
PM10
42.66ppb
O3
0.80ppb
SO2
4.63ppb
NO2
0.20ppm
CO
AQI 40
Good
4.10μg/m³
PM2.5
18.02μg/m³
PM10
42.69ppb
O3
0.81ppb
SO2
4.64ppb
NO2
0.20ppm
CO
AQI 41
Good
4.16μg/m³
PM2.5
19.22μg/m³
PM10
44.47ppb
O3
0.79ppb
SO2
4.45ppb
NO2
0.20ppm
CO
AQI 39
Good
0.84μg/m³
PM2.5
3.16μg/m³
PM10
42.22ppb
O3
0.18ppb
SO2
0.79ppb
NO2
0.13ppm
CO
AQI 39
Good
3.91μg/m³
PM2.5
17.05μg/m³
PM10
42.05ppb
O3
0.49ppb
SO2
2.85ppb
NO2
0.20ppm
CO
AQI 39
Good
3.90μg/m³
PM2.5
17.00μg/m³
PM10
42.00ppb
O3
0.49ppb
SO2
2.84ppb
NO2
0.20ppm
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 Rantoul, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Rantoul, Illinois was at its worst at 11:00:00 on 2026-07-23.
In the last 24 hours, the best air quality in Rantoul, Illinois was observed at 03:00:00 on 2026-07-23.
As of now, the AQI in Rantoul, Illinois is 40, indicating Good conditions.
Rantoul, Illinois air has the highest levels of O3.
Poor air quality in Rantoul, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Rantoul, Illinois are currently 4.318 μg/m3.
The PM10 concentration in Rantoul, Illinois is 20.914 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Rantoul, Illinois is 0.203 ppm.
Currently, Rantoul, Illinois has a sulfur dioxide (SO2) concentration of 0.793 ppb.
The current ozone (O3) level in Rantoul, Illinois at the moment is 42.878 ppm.
Nitrogen dioxide (NO2) level in Rantoul, Illinois at the moment is 4.577 ppb.
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