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, November 21 - Sunday, November 24, 2019

Ozone

Good levels.

Particle pollution (PM_2.5)

Good to Low Moderate levels.

Weather outlook

Thursday - Low pressure tracking through the state led to plenty of rain early this morning for most, with measurable snowfall across the far north and northwest expected to continue into the afternoon. Precipitation chances have begun to diminish and will continue to do so from southwest to northeast before we turn dry and colder statewide behind the cold front. Good AQI is forecast, with some areas in the southeast making the transition from Low Moderate to Good AQI behind the passing front.

Weather map for Thursday, November 21, 2019. Graphic is courtesy of the NOAA/NWS Weather Prediction Center.

Friday - High pressure dominating the scene on Friday will bring some much-needed sun back to the forecast. Temperatures will remain below normal, as has come to be expected this November, while winds turning from northwest to southwest throughout the day will maintain Good AQI and initiate a warming trend.

Weather map for Friday, November 22, 2019. Graphic is courtesy of the NOAA/NWS Weather Prediction Center.

Extended outlook

We appear to be in for a relatively pleasant and quiet weekend, with a warming trend leading to above average temperatures on both Saturday and Sunday. For the most part we should remain dry as well, with some activity remaining to our south on Saturday, and a separate system remaining mostly to our north on Sunday and Monday. Good AQI is forecast, with some increases in concentrations toward Low Moderate AQI by Sunday.

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].