Department meteorologists use monitoring data and weather forecast models to predict Wisconsin's future ozone (O₃) and fine particulate matter (PM_2.5) air quality using the Air Quality Index (AQI) [exit DNR]. This forecast is updated frequently, and when warranted, an Air Quality Advisory is issued. Below is the latest air quality forecast for Wisconsin.

Updated Monday, November 2 - 5:22 p.m.

Tuesday's Forecast (November 3)

A large low pressure system will continue to impact the state with overcast skies and scattered showers with a few rumbles of thunder. The active winds and precipitation will result in Good (Green) AQI.

Wednesday's Forecast (November 4)

The low pressure center will slowly move over Lake Superior, allowing overcast skies, showers, active winds, and Good (Green) AQI to continue.

Thursday’s Forecast Trend (November 5)

Air quality is expected to remain satisfactory.

Forecast Maps:

The black dots represent the approximate location of Wisconsin's air quality monitors. The black borders approximate Wisconsin's Reporting Area boundaries on EPA's AirNow website [exit DNR].

Air Quality Index (AQI) ranges

For more information about AQI ranges and colors, see the U.S. EPA's Air Quality Index (AQI) Basics [exit DNR].