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See
today's forecasts on AIRNow [exit DNR].
View
current air quality in Wisconsin.
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and subscribe to air quality notices.
Contact information
For information on air quality and forecasts, contact:
Mike Majewski
Meteorologist
608-267-0577

Current air quality outlook

Department meteorologists use monitoring data along with weather predictions to determine when and where an air quality notice is needed. The meteorologists submit daily air quality forecasts for eight Wisconsin cities to EPA's AirNow website [exit DNR]. Below is the current air quality forecast for Wisconsin, which will be updated as needed.

Forecasts are reported using the Air Quality Index (AQI) [exit DNR]. The AQI has recently changed to reflect the new federal ozone standard. See Wisconsin Statewide Air Quality Notices for details.

Monday, September 26 - Wednesday, September 28, 2016

Particle pollution (PM2.5)

Good air quality.

Ozone

Good air quality.

Weather outlook

Ozone and PM2.5 air quality are in the Good range across Wisconsin this Monday morning. A high pressure system will slowly move into the Midwest. Northwest winds will increase today and bring cooler air to the state and last through Wednesday. There will be small chances for showers at times during this period. The weather map for Tuesday evening is shown below.

Air quality will be in the Good range.

Weather map for Tuesday, September 27, 2016.

Graphic is courtesy of the National Weather Service.

Extended outlook: Partly sunny skies and pleasant temperatures are likely for Thursday and Friday. Air quality will remain in the Good range.

Air Quality Index (AQI) ranges

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

Color coded chart showing ozone and PM2.5 concentration ranges for each AQI level
AQI Levels
of Health Concern
Numerical Value 8-hr Ozone (ppb) 24-hr PM2.5 (ug/m3)
Good 0-50 0-54 0.0 to 12.0
Moderate 51-100 55-70 12.1 to 35.4
Unhealthy for Sensitive Groups 101-150 71-85 35.5 to 55.4
Unhealthy 151-200 86-105 55.5 to 140.4
Very Unhealthy 201-300 106-200 140.5 to 210.4
Hazardous > 300 > 201 > 210.4
Last revised: Monday September 26 2016