Stay updated with real-time air quality in Normal, 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)
60
Moderate
Normal, Illinois
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
14.10 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
63.00 μg/m³
0
55
155
255
425
605+
15.78 ppb
0
55
71
86
201
201+
0.19 ppb
0
36
76
186
605
1005+
5.30 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Normal, Illinois
Normal, Illinois
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AQI 60
Moderate
14.11μg/m³
PM2.5
63.07μg/m³
PM10
15.80ppb
O3
0.19ppb
SO2
5.32ppb
NO2
0.14ppm
CO
AQI 62
Moderate
14.70μg/m³
PM2.5
62.92μg/m³
PM10
17.58ppb
O3
0.30ppb
SO2
5.44ppb
NO2
0.15ppm
CO
AQI 60
Moderate
14.24μg/m³
PM2.5
61.81μg/m³
PM10
17.55ppb
O3
0.32ppb
SO2
5.34ppb
NO2
0.16ppm
CO
AQI 62
Moderate
14.69μg/m³
PM2.5
69.06μg/m³
PM10
17.39ppb
O3
0.36ppb
SO2
5.42ppb
NO2
0.14ppm
CO
AQI 62
Moderate
14.99μg/m³
PM2.5
66.30μg/m³
PM10
16.04ppb
O3
0.45ppb
SO2
5.21ppb
NO2
0.15ppm
CO
AQI 54
Moderate
10.90μg/m³
PM2.5
48.03μg/m³
PM10
15.44ppb
O3
0.48ppb
SO2
4.86ppb
NO2
0.21ppm
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 Normal, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Normal, Illinois was at its worst at 08:00:00 on 2025-12-07.
In the last 24 hours, the best air quality in Normal, Illinois was observed at 09:00:00 on 2025-12-06.
As of now, the AQI in Normal, Illinois is 60, indicating Moderate conditions.
Normal, Illinois air has the highest levels of PM2.5.
Poor air quality in Normal, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Normal, Illinois are currently 14.101 μg/m3.
The PM10 concentration in Normal, Illinois is 63.004 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Normal, Illinois is 0.143 ppm.
Currently, Normal, Illinois has a sulfur dioxide (SO2) concentration of 0.186 ppb.
The current ozone (O3) level in Normal, Illinois at the moment is 15.779 ppm.
Nitrogen dioxide (NO2) level in Normal, Illinois at the moment is 5.304 ppb.
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