AQ Index for Michigan

Home > USA > Michigan

Air Quality Index for Michigan

The highest AQ index in Michigan (as of 14:00 EST) is currently the Detroit area. Particle Pollution (PM2.5) is measuring at 69 (Moderate). This means air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

Over the next few days, the highest Particle Pollution (PM2.5) will be in the Ann Arbor area. It is forecasted to be Moderate, meaning air quality is acceptable. However, there may be a risk for some people, particularly those who are unusually sensitive to air pollution.

FORECAST DISCUSSION Yesterday (Thursday) marked the “one-month-until-Spring” date. With the unseasonably cold weather we have been experiencing of late, it brings hope of warmer weather and longer days to come. In fact, depending on how you view it, Spring could come even sooner. A recent conversation with my work colleagues brought up the topic of different definitions of Spring. The traditional Spring season, called Astronomical Spring, begins with the vernal equinox that will occur on March 20, 2025. But meteorologists recognize March 1 as the first day of Meteorological Spring, which is based on annual temperature cycles and the Gregorian calendar. While it will not make anything warmer, it feels good to think one definition of Spring will occur one week from tomorrow (Saturday). In fact, we will begin a warming period, starting this weekend. Sunday should be the first day that most of Michigan Lower Peninsula heads north of the freezing mark. The warming cycle continues into the first half of next week with temperatures reaching into the 40’s. With the warming temperatures comes the snow melt. The added moisture to the atmosphere acts as a catalyst for the growth of fine particulates. As such, the Good Air Quality, experienced during the recent cold snap, will give way to Low Moderate Air Quality conditions. This cycle will likely persist through most of next week. EXTENDED FORECAST: Air Quality is expected to be mostly Low Moderate going into the next week. Forecast updated by Jim Haywood: Friday, February 21, 2025 Next forecast update: Monday, February 24, 2025

Range0 - 5051 - 100101 - 150151 - 200201 - 300301 - 500
Color
CategoryGoodModerateUnhealthy for Sensitive GroupsUnhealthyVery UnhealthyHazardous
Created with Raphaël 2.1.0

Last Updated 29 minutes ago

AQ Index Forecast by County in Michigan

Below is a list of counties in Michigan. Click on any county below and you'll get a list of cities where we provide AQ index forecasts.

Wayne Kent Genesee Ingham Washtenaw
Kalamazoo Muskegon Macomb Oakland Saginaw
Ottawa Jackson St. Clair Calhoun Bay
Midland Isabella Eaton Marquette Lenawee
Monroe Grand Traverse Shiawassee Chippewa Branch
Delta Ionia Berrien St. Joseph Wexford
Mecosta Alpena Livingston Gratiot Lapeer
Montcalm Mason Menominee Hillsdale Clinton
Houghton Dickinson Barry Manistee Emmet
Cass Roscommon Allegan Gogebic Cheboygan
Van Buren Newaygo Tuscola Charlevoix Otsego
Ogemaw Clare Schoolcraft Huron Gladwin
Iron Sanilac Iosco Presque Isle Oceana
Kalkaska Mackinac Baraga Osceola Alger
Crawford Leelanau Antrim Oscoda Ontonagon
Arenac Luce Lake Benzie Alcona
Montmorency Missaukee Keweenaw