Stay updated with real-time air quality in Madison, 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)
41
Good
Madison, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.33 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.22 μg/m³
0
55
155
255
425
605+
44.08 ppb
0
55
71
86
201
201+
0.35 ppb
0
36
76
186
605
1005+
1.79 ppb
0
54
101
361
1250
2050+
0.25 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Madison, Wisconsin
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AQI 33
Good
4.31μg/m³
PM2.5
14.83μg/m³
PM10
35.85ppb
O3
0.58ppb
SO2
3.79ppb
NO2
0.20ppm
CO
AQI 33
Good
4.25μg/m³
PM2.5
13.55μg/m³
PM10
35.79ppb
O3
0.58ppb
SO2
3.78ppb
NO2
0.20ppm
CO
AQI 33
Good
4.46μg/m³
PM2.5
17.02μg/m³
PM10
35.74ppb
O3
0.57ppb
SO2
3.70ppb
NO2
0.20ppm
CO
AQI 34
Good
4.51μg/m³
PM2.5
18.61μg/m³
PM10
36.79ppb
O3
0.59ppb
SO2
3.79ppb
NO2
0.20ppm
CO
AQI 35
Good
4.51μg/m³
PM2.5
18.69μg/m³
PM10
37.51ppb
O3
0.59ppb
SO2
3.79ppb
NO2
0.20ppm
CO
AQI 34
Good
4.55μg/m³
PM2.5
12.81μg/m³
PM10
36.63ppb
O3
0.46ppb
SO2
3.69ppb
NO2
0.19ppm
CO
Air quality and pollutant data for Wisconsin, 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 Madison, Wisconsin is updated every hour for accuracy.
In the past 24 hours, the air quality in Madison, Wisconsin was at its worst at 11:00:00 on 2026-03-08.
In the last 24 hours, the best air quality in Madison, Wisconsin was observed at 03:00:00 on 2026-03-09.
As of now, the AQI in Madison, Wisconsin is 41, indicating Good conditions.
Madison, Wisconsin air has the highest levels of O3.
Poor air quality in Madison, Wisconsin means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Madison, Wisconsin are currently 4.33 μg/m3.
The PM10 concentration in Madison, Wisconsin is 14.218 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Madison, Wisconsin is 0.248 ppm.
Currently, Madison, Wisconsin has a sulfur dioxide (SO2) concentration of 0.353 ppb.
The current ozone (O3) level in Madison, Wisconsin at the moment is 44.079 ppm.
Nitrogen dioxide (NO2) level in Madison, Wisconsin at the moment is 1.793 ppb.
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