Stay updated with real-time air quality in Wisconsin, USA 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)
37
Good
Wisconsin, USA
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.83 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
20.18 μg/m³
0
55
155
255
425
605+
39.98 ppb
0
55
71
86
201
201+
0.69 ppb
0
36
76
186
605
1005+
4.16 ppb
0
54
101
361
1250
2050+
0.14 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Wisconsin, USA
Wisconsin, USA
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| City | AQI | PM2.5 | PM10 | O3 | SO2 | NO2 | CO |
|---|---|---|---|---|---|---|---|
AQI 38
Good
4.63μg/m³
PM2.5
19.39μg/m³
PM10
40.70ppb
O3
0.77ppb
SO2
5.08ppb
NO2
0.16ppm
CO
AQI 36
Good
6.15μg/m³
PM2.5
26.91μg/m³
PM10
39.04ppb
O3
1.75ppb
SO2
5.76ppb
NO2
0.15ppm
CO
AQI 35
Good
5.10μg/m³
PM2.5
21.53μg/m³
PM10
38.02ppb
O3
0.57ppb
SO2
2.60ppb
NO2
0.22ppm
CO
AQI 36
Good
5.65μg/m³
PM2.5
23.11μg/m³
PM10
38.58ppb
O3
1.50ppb
SO2
6.63ppb
NO2
0.14ppm
CO
AQI 39
Good
5.45μg/m³
PM2.5
24.99μg/m³
PM10
41.58ppb
O3
0.85ppb
SO2
3.53ppb
NO2
0.22ppm
CO
AQI 39
Good
4.96μg/m³
PM2.5
19.03μg/m³
PM10
42.44ppb
O3
1.69ppb
SO2
7.61ppb
NO2
0.14ppm
CO
The air quality data for Wisconsin, USA is gathered from reliable sources such as satellites and monitoring stations, adhering to US EPA guidelines. With the help of advanced algorithms and machine learning, factors like traffic and population density are analyzed to deliver accurate and dependable results.
Source: Ambee Data Sources
Air quality updates for Wisconsin, USA are available every hour.
Wisconsin, USA experienced its worst air quality at 07:00:00, 2026-07-23.
The best air quality in Wisconsin, USA was observed at 03:00:00 on 2026-07-23.
The air quality in Wisconsin, USA right now is Good, with an AQI of 37.
In Wisconsin, USA, O3 is the most frequently found pollutant.
When air quality in Wisconsin, USA is compromised, staying indoors and wearing a mask can reduce health risks.
Wisconsin, USA currently has a PM2.5 concentration of 4.827 μg/m3.
Wisconsin, USA currently has a PM10 concentration of 20.182 μg/m3.
The current carbon monoxide (CO) level in Wisconsin, USA is 0.136 ppm.
The current sulfur dioxide (SO2) concentration in Wisconsin, USA is 0.689 ppb.
Wisconsin, USA currently has an ozone (O3) concentration of 39.982 ppm.
The current level of nitrogen dioxide (NO2) in Wisconsin, USA is 4.162 ppb.
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