Department meteorologists use monitoring data and weather forecast models to predict Wisconsin's future ozone (O3) and fine particulate matter (PM2.5) air quality using the Air Quality Index (AQI) [exit DNR]. This forecast is updated two-to-three times weekly throughout the year, and when warranted, an Air Quality Advisory is issued. Below is the latest air quality forecast for Wisconsin.
Monday, February 26 - Sunday, March 3, 2024
Particle pollution (PM2.5)
Good to Moderate levels.
Short-Term Forecast Maps:
The daily AQI is forecast for counties that monitor each pollutant of interest. The black dots represent the approximate location of Wisconsin's air quality monitors. Read the forecast summaries below for further geographic information.
Extended Outlook (Days 4-7)Temperatures will rebound quickly to well above normal values with strong southerly flow and mostly sunny skies returning Thursday through Saturday. Depending on the speed of the next system, we may even see continued sun alongside mild temperatures on Sunday, but eventually this system is likely to bring another shot of storms followed by drastically falling temperatures in the Sunday to Monday timeframe. With southerly flow expected through the extended period, Moderate AQI PM2.5 will remain a possibility.
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].