Stay updated with real-time air quality in Hudson, 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)
23
Good
Hudson, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.61 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
14.78 μg/m³
0
55
155
255
425
605+
25.21 ppb
0
55
71
86
201
201+
0.59 ppb
0
36
76
186
605
1005+
5.38 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Hudson, Wisconsin
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AQI 25
Good
2.86μg/m³
PM2.5
18.89μg/m³
PM10
26.65ppb
O3
0.64ppb
SO2
4.15ppb
NO2
0.16ppm
CO
AQI 26
Good
2.99μg/m³
PM2.5
23.93μg/m³
PM10
27.70ppb
O3
0.64ppb
SO2
4.08ppb
NO2
0.16ppm
CO
AQI 24
Good
3.42μg/m³
PM2.5
14.86μg/m³
PM10
25.96ppb
O3
0.63ppb
SO2
4.68ppb
NO2
0.16ppm
CO
AQI 25
Good
3.82μg/m³
PM2.5
16.56μg/m³
PM10
27.19ppb
O3
0.58ppb
SO2
3.86ppb
NO2
0.17ppm
CO
AQI 24
Good
3.35μg/m³
PM2.5
14.52μg/m³
PM10
25.94ppb
O3
0.63ppb
SO2
4.74ppb
NO2
0.16ppm
CO
AQI 24
Good
3.77μg/m³
PM2.5
16.54μg/m³
PM10
25.93ppb
O3
0.64ppb
SO2
4.54ppb
NO2
0.16ppm
CO
Air quality data and pollutant measurements for Wisconsin, USA adhere to strict US EPA standards. The data is collected from multiple reliable sources, including satellites and ground-based monitoring stations. This data is further analyzed and enhanced using machine learning and advanced algorithms that factor in elements such as traffic and population density, ensuring accurate and reliable results.
Source: Ambee Data Sources
The air quality for Hudson, Wisconsin is updated every hour.
The worst air quality in Hudson, Wisconsin in the last 24 hours was observed at 06:00:00 on 2026-03-08.
In the last 24 hrs, the best air quality in Hudson, Wisconsin was observed at 03:00:00 on 2026-03-07.
The current air quality in Hudson, Wisconsin is 23, categorized as Good based on real-time data.
The most common pollutant in Hudson, Wisconsin is O3.
If the air quality in Hudson, Wisconsin is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Hudson, Wisconsin is 3.608 μg/m3.
The current PM10 concentration at Hudson, Wisconsin is 14.782 μg/m3.
The current carbon monoxide (CO) concentration at Hudson, Wisconsin is 0.168 ppm.
The current sulfur dioxide (SO2) concentration at Hudson, Wisconsin is 0.59 ppb.
The current ozone (O3) concentration at Hudson, Wisconsin is 25.211 ppm.
The current nitrogen dioxide (NO2) concentration at Hudson, Wisconsin is 5.385 ppb.
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