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Air Quality

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Active Advisory: 

Air Quality Advisory for PM2.5 (Orange)

Start Time: 8:00 p.m. CDT Friday, July 30 2021
End Time: 12:00 p.m. CDT Sunday, Aug. 1, 2021

Counties: Statewide

Smoke from wildfire activity in Canada currently located in Minnesota will move into Wisconsin overnight Friday into Saturday morning. This smoke plume is expected to mostly impact the northern half of the state. A secondary smoke plume will then transport behind a cold front which is expected to move north-to-south across the state Saturday afternoon into early Sunday morning. Elevated fine particulate matter (PM2.5) concentrations are anticipated to result in air quality index  (AQI) values reaching the UNHEALTHY FOR SENSITIVE GROUPS (Orange) level. Sensitive groups, including children, elderly people, individuals with respiratory and cardiac problems, and anyone engaged in strenuous outdoor activities for a prolonged period of time, should avoid extended outdoor exposure.

More Information: Wisconsin's Current Air Quality

Good air quality is important for human health and the environment. The DNR both monitors the state's air quality and implements regulations to improve and protect it.

Current Air Quality, Monitoring Data and Forecasts

View Wisconsin's current air quality and forecasts.

Air Quality Monitoring Sites

The DNR operates a network of air monitors around Wisconsin.


Brilliant fireworks displays are fun to watch but can impact air quality and health.

Air Quality Trends

Reports show that the overall air quality in Wisconsin continues to improve.

Public Input

Public hearing, meeting and comment opportunities for the Air Program.

Open Burning

Outdoor burning generates smoke and air pollution, and is the number one cause of wildfires. Find out more!

Air Quality News and Subscriptions

Stay informed with Air News and other subscriptions.