- Contact information
- For information on air quality and forecasts, contact:
- Mike Majewski
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. Below is the current air quality forecast for Wisconsin, which will be updated as needed.
Friday, March 24 - Monday, March 27, 2017
Note: Ozone monitoring season ended on October 15, 2016. Ozone forecasts will resume in late April, when the 2017 ozone season begins.
Particle pollution (PM2.5)
Good and Moderate levels.
PM2.5 air quality is in the Good range across Wisconsin this Friday morning. Most sites should remain the in Good range while some scattered locations may reach low-end Moderate levels. Clouds will cover the northern part of the state but some sunshine will occur over the south.
A frontal boundary draped across southern Wisconsin this morning will remain in the region for the weekend. It will serve as a focus for rain showers through Sunday. Temperatures will be cool with northeast winds adding a chill.
Air quality will be in the Good range through Monday with the possibility of some scattered sites reaching low-end Moderate levels.
Below is the weather map for 7:00 a.m. Sunday morning.
A high pressure system should push across the region with quiet and seasonal weather for Tuesday and Wednesday. Good air quality will be the rule.
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.
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|