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)
49
Good
Madison, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
8.79 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
19.22 μg/m³
0
55
155
255
425
605+
19.45 ppb
0
55
71
86
201
201+
0.54 ppb
0
36
76
186
605
1005+
5.74 ppb
0
54
101
361
1250
2050+
0.18 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Madison, Wisconsin
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AQI 54
Moderate
10.82μg/m³
PM2.5
26.03μg/m³
PM10
16.58ppb
O3
0.58ppb
SO2
7.62ppb
NO2
0.18ppm
CO
AQI 54
Moderate
10.72μg/m³
PM2.5
19.82μg/m³
PM10
16.61ppb
O3
0.58ppb
SO2
7.60ppb
NO2
0.18ppm
CO
AQI 54
Moderate
10.74μg/m³
PM2.5
28.68μg/m³
PM10
16.86ppb
O3
0.58ppb
SO2
7.61ppb
NO2
0.18ppm
CO
AQI 52
Moderate
10.20μg/m³
PM2.5
19.15μg/m³
PM10
16.45ppb
O3
0.57ppb
SO2
7.48ppb
NO2
0.19ppm
CO
AQI 52
Moderate
9.91μg/m³
PM2.5
15.42μg/m³
PM10
14.12ppb
O3
0.58ppb
SO2
7.67ppb
NO2
0.19ppm
CO
AQI 49
Good
9.24μg/m³
PM2.5
25.54μg/m³
PM10
15.62ppb
O3
0.82ppb
SO2
8.53ppb
NO2
0.18ppm
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 2025-12-07.
In the last 24 hours, the best air quality in Madison, Wisconsin was observed at 04:00:00 on 2025-12-06.
As of now, the AQI in Madison, Wisconsin is 49, indicating Good conditions.
Madison, Wisconsin air has the highest levels of PM2.5.
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 8.795 μg/m3.
The PM10 concentration in Madison, Wisconsin is 19.224 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Madison, Wisconsin is 0.182 ppm.
Currently, Madison, Wisconsin has a sulfur dioxide (SO2) concentration of 0.543 ppb.
The current ozone (O3) level in Madison, Wisconsin at the moment is 19.455 ppm.
Nitrogen dioxide (NO2) level in Madison, Wisconsin at the moment is 5.742 ppb.
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