Current air quality outlook

Department meteorologists use monitoring data and weather forecast models to predict Wisconsin's future air quality using the Air Quality Index (AQI) [exit DNR]. If warranted, an Air Quality Notice is issued. Below is the latest air quality forecast for Wisconsin.

Thursday, March 26 - Sunday, March 29, 2020

Ozone

Good levels.

Particle pollution (PM_2.5)

Good levels.

Weather outlook

Thursday - Seasonal temperatures will continue despite mostly cloudy skies and light northerly winds. Light precipitation remains a possibility in the south, while the north looks to remain dry. Good AQI is forecast.

Weather map for Thursday, March 26, 2020. Graphic is courtesy of the NOAA/NWS Weather Prediction Center.

Friday - A low pressure system will strengthen as it works its way east throughout the day on Friday, eventually bringing precipitation statewide Friday night through Saturday night. Otherwise, winds turn more easterly on Friday, while seasonal temperatures, cloudy skies, and Good AQI continue.

Weather map for Friday, March 27, 2020. Graphic is courtesy of the NOAA/NWS Weather Prediction Center.

Extended outlook

Precipitation is anticipated to spread from south to north Friday night into Saturday, continuing throughout the day on Saturday with the potential development of thunderstorms for the second half of the day. Light rain will diminish Sunday morning with a few flurries mixed in further north. Windy conditions are then forecast on the backside of the system for Sunday, with Good AQI holding through an active weather weekend.

Note: All weather maps are courtesy of the NOAA/NWS Weather Prediction Center [exit DNR].

Air Quality Index (AQI) ranges

For more information about AQI ranges and colors, see the U.S. EPA's Air Quality Index - A Guide to Air Quality and Your Health [exit DNR].