Stay updated with real-time air quality in South Milwaukee, Wisconsin 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)
31
Good
South Milwaukee, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.31 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.27 μg/m³
0
55
155
255
425
605+
33.02 ppb
0
55
71
86
201
201+
0.25 ppb
0
36
76
186
605
1005+
9.86 ppb
0
54
101
361
1250
2050+
0.47 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
South Milwaukee, Wisconsin
South Milwaukee, Wisconsin
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AQI 32
Good
5.20μg/m³
PM2.5
22.79μg/m³
PM10
34.61ppb
O3
0.30ppb
SO2
6.46ppb
NO2
0.28ppm
CO
AQI 31
Good
5.27μg/m³
PM2.5
24.88μg/m³
PM10
34.09ppb
O3
0.29ppb
SO2
6.62ppb
NO2
0.29ppm
CO
AQI 32
Good
4.73μg/m³
PM2.5
20.25μg/m³
PM10
34.70ppb
O3
0.29ppb
SO2
7.44ppb
NO2
0.29ppm
CO
AQI 33
Good
5.40μg/m³
PM2.5
22.11μg/m³
PM10
35.51ppb
O3
0.33ppb
SO2
5.61ppb
NO2
0.27ppm
CO
AQI 31
Good
4.95μg/m³
PM2.5
22.86μg/m³
PM10
34.16ppb
O3
0.29ppb
SO2
7.06ppb
NO2
0.29ppm
CO
AQI 32
Good
4.74μg/m³
PM2.5
20.14μg/m³
PM10
34.81ppb
O3
0.30ppb
SO2
7.19ppb
NO2
0.29ppm
CO
Air quality measurements for Wisconsin, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for South Milwaukee, Wisconsin is updated on an hourly basis.
The worst air quality in South Milwaukee, Wisconsin was recorded at 01:00:00 on 2026-08-08.
The best air quality in South Milwaukee, Wisconsin was recorded at 07:00:00 on 2026-08-08.
The real-time air quality index in South Milwaukee, Wisconsin is 32, currently categorized as Good.
The most common pollutant in South Milwaukee, Wisconsin is O3.
If the air quality in South Milwaukee, Wisconsin is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in South Milwaukee, Wisconsin at present are 4.964 μg/m3.
The current PM10 levels in South Milwaukee, Wisconsin are 21.425 μg/m3.
The current carbon monoxide (CO) level in South Milwaukee, Wisconsin is 0.289 ppm.
The current sulfur dioxide (SO2) levels in South Milwaukee, Wisconsin are 0.296 ppb.
The current ozone (O3) levels at South Milwaukee, Wisconsin is 34.643 ppm.
The current nitrogen dioxide (NO2) levels at South Milwaukee, Wisconsin is 6.912 ppb.
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