Stay updated with real-time air quality in Middleton, 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)
107
Unhealthy for sensitive groups
Middleton, Wisconsin
Last updated: ... (Local time)
Good
Fine
Moderate
Poor
Very poor
Hazardous
38.37 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
69.74 μg/m³
0
55
155
255
425
605+
8.82 ppb
0
55
71
86
201
201+
0.33 ppb
0
36
76
186
605
1005+
18.58 ppb
0
54
101
361
1250
2050+
0.52 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Middleton, Wisconsin
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AQI 110
Unhealthy for sensitive groups
38.73μg/m³
PM2.5
84.67μg/m³
PM10
7.86ppb
O3
0.33ppb
SO2
18.62ppb
NO2
0.52ppm
CO
AQI 107
Unhealthy for sensitive groups
37.64μg/m³
PM2.5
97.65μg/m³
PM10
9.24ppb
O3
0.33ppb
SO2
18.56ppb
NO2
0.52ppm
CO
AQI 96
Moderate
32.93μg/m³
PM2.5
66.03μg/m³
PM10
9.41ppb
O3
0.34ppb
SO2
19.94ppb
NO2
0.52ppm
CO
AQI 110
Unhealthy for sensitive groups
38.58μg/m³
PM2.5
90.26μg/m³
PM10
8.13ppb
O3
0.33ppb
SO2
18.63ppb
NO2
0.52ppm
CO
AQI 77
Moderate
23.29μg/m³
PM2.5
50.60μg/m³
PM10
16.64ppb
O3
0.33ppb
SO2
18.82ppb
NO2
0.51ppm
CO
AQI 137
Unhealthy for sensitive groups
49.60μg/m³
PM2.5
164.43μg/m³
PM10
8.17ppb
O3
0.33ppb
SO2
18.59ppb
NO2
0.52ppm
CO
Air quality measurements for Wisconsin, USA meet strict US EPA standards. These measurements are collected from reliable sources, including satellites and ground-based monitoring systems. Advanced algorithms and machine learning techniques are applied to the data, factoring in variables such as traffic and population density, to ensure precision and reliability.
Source: Ambee Data Sources
Air quality data for Middleton, Wisconsin is updated on an hourly basis.
The worst air quality in Middleton, Wisconsin was recorded at 02:00:00 on 2025-06-04.
The best air quality in Middleton, Wisconsin was recorded at 02:00:00 on 2025-06-05.
The real-time air quality index in Middleton, Wisconsin is 107, currently categorized as Unhealthy for Sensitive Groups.
The most common pollutant in Middleton, Wisconsin is PM2.5.
If the air quality in Middleton, Wisconsin is poor, limit outdoor activities and use a mask to safeguard your health.
The measured PM2.5 levels in Middleton, Wisconsin at present are 38.37 μg/m3.
The current PM10 levels in Middleton, Wisconsin are 69.737 μg/m3.
The current carbon monoxide (CO) level in Middleton, Wisconsin is 0.516 ppm.
The current sulfur dioxide (SO2) levels in Middleton, Wisconsin are 0.332 ppb.
The current ozone (O3) levels at Middleton, Wisconsin is 8.818 ppm.
The current nitrogen dioxide (NO2) levels at Middleton, Wisconsin is 18.577 ppb.
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