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.
Monday, March 30 - Friday, April 03, 2020
Particle pollution (PM2.5)
Good to Low Moderate levels.
Monday - Low pressure continues moving east with light northerly winds helping to maintain Good AQI throughout the day. Partly sunny skies will lead to mild temperatures away from the lake, while increased cloud cover towards the east will keep temps a bit cooler there.
Weather map for Monday, March 30, 2020. Graphic is courtesy of the NOAA/NWS Weather Prediction Center.
Tuesday - Another dry day is expected for the state on Tuesday as the next system remains well to our south. This will reinforce northerly winds, allowing for Good AQI to persist and slightly cooler temperatures to return.
Weather map for Tuesday, March 31, 2020. Graphic is courtesy of the NOAA/NWS Weather Prediction Center.
Wednesday - Winds weaken for Wednesday as temperatures turn mild once again alongside partly to mostly cloudy skies. Good AQI is expected to continue, as are dry conditions, although some areas to the west may see a few light showers.
To end the workweek, a southerly component to the winds looks to bring temperatures up into the 60s for southern WI, but also eventually bringing rain along a cold front. Aided by the southerly flow, an increase in particulate concentrations along this front will be possible, leading to Low Moderate AQI in some areas. Otherwise, warm temperatures and scattered showers towards the west are currently forecast.
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].