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)
44
Good
Madison, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
6.60 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.48 μg/m³
0
55
155
255
425
605+
46.77 ppb
0
55
71
86
201
201+
0.86 ppb
0
36
76
186
605
1005+
1.85 ppb
0
54
101
361
1250
2050+
0.16 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Madison, Wisconsin
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AQI 44
Good
6.53μg/m³
PM2.5
19.96μg/m³
PM10
46.83ppb
O3
0.86ppb
SO2
1.87ppb
NO2
0.16ppm
CO
AQI 44
Good
6.73μg/m³
PM2.5
18.63μg/m³
PM10
46.51ppb
O3
0.86ppb
SO2
1.86ppb
NO2
0.16ppm
CO
AQI 44
Good
6.38μg/m³
PM2.5
20.72μg/m³
PM10
46.80ppb
O3
0.85ppb
SO2
1.90ppb
NO2
0.16ppm
CO
AQI 43
Good
6.69μg/m³
PM2.5
18.49μg/m³
PM10
46.30ppb
O3
0.94ppb
SO2
1.85ppb
NO2
0.16ppm
CO
AQI 44
Good
6.98μg/m³
PM2.5
23.61μg/m³
PM10
46.84ppb
O3
0.91ppb
SO2
1.85ppb
NO2
0.16ppm
CO
AQI 45
Good
6.95μg/m³
PM2.5
23.57μg/m³
PM10
49.39ppb
O3
0.78ppb
SO2
1.84ppb
NO2
0.15ppm
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 02:00:00 on 2026-04-23.
In the last 24 hours, the best air quality in Madison, Wisconsin was observed at 03:00:00 on 2026-04-23.
As of now, the AQI in Madison, Wisconsin is 44, 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 6.601 μg/m3.
The PM10 concentration in Madison, Wisconsin is 19.477 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Madison, Wisconsin is 0.159 ppm.
Currently, Madison, Wisconsin has a sulfur dioxide (SO2) concentration of 0.861 ppb.
The current ozone (O3) level in Madison, Wisconsin at the moment is 46.771 ppm.
Nitrogen dioxide (NO2) level in Madison, Wisconsin at the moment is 1.85 ppb.
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