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

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.00 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
26.09 μg/m³
0
55
155
255
425
605+
7.87 ppb
0
55
71
86
201
201+
0.60 ppb
0
36
76
186
605
1005+
5.46 ppb
0
54
101
361
1250
2050+
0.33 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Montgomery, Illinois
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AQI 33
Good
5.94μg/m³
PM2.5
25.58μg/m³
PM10
6.07ppb
O3
0.85ppb
SO2
5.59ppb
NO2
0.24ppm
CO
AQI 33
Good
5.70μg/m³
PM2.5
25.07μg/m³
PM10
11.39ppb
O3
0.83ppb
SO2
5.36ppb
NO2
0.23ppm
CO
AQI 33
Good
5.95μg/m³
PM2.5
25.68μg/m³
PM10
6.26ppb
O3
0.85ppb
SO2
5.62ppb
NO2
0.24ppm
CO
AQI 33
Good
5.72μg/m³
PM2.5
28.95μg/m³
PM10
14.04ppb
O3
0.80ppb
SO2
5.32ppb
NO2
0.23ppm
CO
AQI 33
Good
6.01μg/m³
PM2.5
26.08μg/m³
PM10
6.46ppb
O3
0.84ppb
SO2
5.67ppb
NO2
0.24ppm
CO
AQI 38
Good
7.08μg/m³
PM2.5
31.31μg/m³
PM10
6.16ppb
O3
0.86ppb
SO2
5.97ppb
NO2
0.24ppm
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 Montgomery, Illinois is updated every hour for accuracy.
In the past 24 hours, the air quality in Montgomery, Illinois was at its worst at 03:00:00 on 2026-09-07.
In the last 24 hours, the best air quality in Montgomery, Illinois was observed at 01:00:00 on 2026-09-06.
As of now, the AQI in Montgomery, Illinois is 33, indicating Good conditions.
Montgomery, Illinois air has the highest levels of PM2.5.
Poor air quality in Montgomery, Illinois means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Montgomery, Illinois are currently 6.002 μg/m3.
The PM10 concentration in Montgomery, Illinois is 26.09 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Montgomery, Illinois is 0.327 ppm.
Currently, Montgomery, Illinois has a sulfur dioxide (SO2) concentration of 0.596 ppb.
The current ozone (O3) level in Montgomery, Illinois at the moment is 7.866 ppm.
Nitrogen dioxide (NO2) level in Montgomery, Illinois at the moment is 5.465 ppb.
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