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  4. Jefferson County

Jefferson County

Wisconsin

2026-10-20 22:00
AQI (US)
Good
Pollutants
PM2.5
μg/m³
5.7
PM10
μg/m³
12.5
Weather
  • ℃
  • ℉
21℃
39%
0 kph
0 of 11
Historical Data
  • Hourly
  • Daily
  • AQI (US)
  • PM2.5
  • PM10
Places included
Fort Atkinson
AQI 38
Jefferson
AQI 34
Johnson Creek
AQI 35
Lake Mills
AQI 39
Palmyra
AQI 30
Sullivan
AQI 29
Waterloo
AQI 38
Watertown
AQI 36

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Cities Nearby

Johnson Creek
AQI 35
Watertown
AQI 36
Jefferson
AQI 37
Sullivan
AQI 29
Lake Mills
AQI 39
Oconomowoc
AQI 25
Oconomowoc Lake
AQI 25
Fort Atkinson
AQI 38
Dousman
AQI 25
Clyman
AQI 25
Waterloo
AQI 38