Stay updated with real-time air quality in Howard, 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)
32
Good
Howard, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
4.18 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
18.25 μg/m³
0
55
155
255
425
605+
34.81 ppb
0
55
71
86
201
201+
0.21 ppb
0
36
76
186
605
1005+
2.50 ppb
0
54
101
361
1250
2050+
0.17 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Low
Howard, Wisconsin
Howard, Wisconsin
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AQI 31
Good
4.21μg/m³
PM2.5
19.02μg/m³
PM10
33.74ppb
O3
0.23ppb
SO2
3.77ppb
NO2
0.15ppm
CO
AQI 32
Good
4.43μg/m³
PM2.5
18.73μg/m³
PM10
34.62ppb
O3
0.25ppb
SO2
3.78ppb
NO2
0.15ppm
CO
AQI 31
Good
4.25μg/m³
PM2.5
19.11μg/m³
PM10
33.72ppb
O3
0.22ppb
SO2
3.77ppb
NO2
0.15ppm
CO
AQI 31
Good
4.61μg/m³
PM2.5
18.75μg/m³
PM10
34.08ppb
O3
0.20ppb
SO2
3.84ppb
NO2
0.15ppm
CO
AQI 31
Good
4.22μg/m³
PM2.5
19.06μg/m³
PM10
33.72ppb
O3
0.23ppb
SO2
3.77ppb
NO2
0.15ppm
CO
AQI 31
Good
4.31μg/m³
PM2.5
19.26μg/m³
PM10
33.68ppb
O3
0.21ppb
SO2
3.78ppb
NO2
0.15ppm
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 Howard, Wisconsin is updated every hour.
The worst air quality in Howard, Wisconsin in the last 24 hours was observed at 08:00:00 on 2026-06-07.
In the last 24 hrs, the best air quality in Howard, Wisconsin was observed at 02:00:00 on 2026-06-07.
The current air quality in Howard, Wisconsin is 32, categorized as Good based on real-time data.
The most common pollutant in Howard, Wisconsin is O3.
If the air quality in Howard, Wisconsin is poor, consider staying indoors and wearing a mask to protect yourself.
The current PM2.5 concentration at Howard, Wisconsin is 4.181 μg/m3.
The current PM10 concentration at Howard, Wisconsin is 18.253 μg/m3.
The current carbon monoxide (CO) concentration at Howard, Wisconsin is 0.17 ppm.
The current sulfur dioxide (SO2) concentration at Howard, Wisconsin is 0.215 ppb.
The current ozone (O3) concentration at Howard, Wisconsin is 34.815 ppm.
The current nitrogen dioxide (NO2) concentration at Howard, Wisconsin is 2.503 ppb.
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