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)
66
Moderate
South Milwaukee, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
16.60 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
37.19 μg/m³
0
55
155
255
425
605+
43.50 ppb
0
55
71
86
201
201+
0.92 ppb
0
36
76
186
605
1005+
5.51 ppb
0
54
101
361
1250
2050+
0.39 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 64
Moderate
16.16μg/m³
PM2.5
37.76μg/m³
PM10
38.04ppb
O3
1.00ppb
SO2
5.38ppb
NO2
0.29ppm
CO
AQI 64
Moderate
16.16μg/m³
PM2.5
36.70μg/m³
PM10
38.00ppb
O3
0.98ppb
SO2
5.14ppb
NO2
0.29ppm
CO
AQI 64
Moderate
16.31μg/m³
PM2.5
35.98μg/m³
PM10
37.79ppb
O3
0.99ppb
SO2
5.39ppb
NO2
0.29ppm
CO
AQI 64
Moderate
16.25μg/m³
PM2.5
40.28μg/m³
PM10
35.04ppb
O3
1.04ppb
SO2
5.90ppb
NO2
0.27ppm
CO
AQI 64
Moderate
16.14μg/m³
PM2.5
36.12μg/m³
PM10
37.81ppb
O3
0.99ppb
SO2
5.25ppb
NO2
0.29ppm
CO
AQI 64
Moderate
16.07μg/m³
PM2.5
36.72μg/m³
PM10
37.83ppb
O3
1.00ppb
SO2
5.35ppb
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 07:00:00 on 2026-10-22.
The best air quality in South Milwaukee, Wisconsin was recorded at 09:00:00 on 2026-10-21.
The real-time air quality index in South Milwaukee, Wisconsin is 66, currently categorized as Moderate.
The most common pollutant in South Milwaukee, Wisconsin is PM2.5.
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 16.6 μg/m3.
The current PM10 levels in South Milwaukee, Wisconsin are 37.186 μg/m3.
The current carbon monoxide (CO) level in South Milwaukee, Wisconsin is 0.385 ppm.
The current sulfur dioxide (SO2) levels in South Milwaukee, Wisconsin are 0.917 ppb.
The current ozone (O3) levels at South Milwaukee, Wisconsin is 43.5 ppm.
The current nitrogen dioxide (NO2) levels at South Milwaukee, Wisconsin is 5.507 ppb.
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