Stay updated with real-time air quality in Franklin, 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)
31
Good
Franklin, Wisconsin
Last updated: ... (Local time)

Good
Fine
Moderate
Poor
Very poor
Hazardous
3.63 μg/m³
0
12.1
35.5
55.5
250.5
500.5+
10.55 μg/m³
0
55
155
255
425
605+
33.85 ppb
0
55
71
86
201
201+
0.15 ppb
0
36
76
186
605
1005+
2.52 ppb
0
54
101
361
1250
2050+
0.19 ppm
0
4.5
9.5
12.5
230.5
50.5+
Pollen Level
Franklin, Wisconsin
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AQI 31
Good
3.62μg/m³
PM2.5
10.40μg/m³
PM10
33.89ppb
O3
0.15ppb
SO2
2.57ppb
NO2
0.20ppm
CO
AQI 31
Good
3.68μg/m³
PM2.5
11.16μg/m³
PM10
33.74ppb
O3
0.14ppb
SO2
2.52ppb
NO2
0.20ppm
CO
AQI 31
Good
3.83μg/m³
PM2.5
12.81μg/m³
PM10
33.33ppb
O3
0.18ppb
SO2
2.15ppb
NO2
0.18ppm
CO
AQI 31
Good
3.84μg/m³
PM2.5
13.03μg/m³
PM10
32.76ppb
O3
0.17ppb
SO2
2.19ppb
NO2
0.18ppm
CO
AQI 32
Good
3.67μg/m³
PM2.5
15.06μg/m³
PM10
34.55ppb
O3
0.16ppb
SO2
2.23ppb
NO2
0.19ppm
CO
AQI 31
Good
3.66μg/m³
PM2.5
12.59μg/m³
PM10
34.04ppb
O3
0.15ppb
SO2
2.40ppb
NO2
0.19ppm
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 Franklin, Wisconsin is updated every hour for accuracy.
In the past 24 hours, the air quality in Franklin, Wisconsin was at its worst at 10:00:00 on 2026-04-27.
In the last 24 hours, the best air quality in Franklin, Wisconsin was observed at 08:00:00 on 2026-04-28.
As of now, the AQI in Franklin, Wisconsin is 31, indicating Good conditions.
Franklin, Wisconsin air has the highest levels of O3.
Poor air quality in Franklin, Wisconsin means it's advisable to stay indoors and wear a mask for your protection.
PM2.5 levels in Franklin, Wisconsin are currently 3.626 μg/m3.
The PM10 concentration in Franklin, Wisconsin is 10.555 μg/m3 at the moment.
The current carbon monoxide (CO) concentration in Franklin, Wisconsin is 0.194 ppm.
Currently, Franklin, Wisconsin has a sulfur dioxide (SO2) concentration of 0.147 ppb.
The current ozone (O3) level in Franklin, Wisconsin at the moment is 33.854 ppm.
Nitrogen dioxide (NO2) level in Franklin, Wisconsin at the moment is 2.524 ppb.
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