The highest AQ index in Michigan (as of 20:00 EDT) is currently the Grand Rapids area. Particle Pollution (PM2.5) is measuring at 52 (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 Ozone (OZONE) will be in the Ann Arbor area. It is forecasted to be Good, meaning air quality is satisfactory, and air pollution poses little or no risk.
FORECAST DISCUSSION: One of Michigan’s mottos, Water Wonderland, surely lived up to its name this week as numerous rounds of storms and rain showers impacted the entire state. In the north, warm temperatures are accelerating the melting of snow which is compounding the flooding risk along with the inches of rain we have all seen and walked in. Today, Friday, however, will see a slight break in precipitation as soon as the morning fog dissipates and gives way to clear skies Friday afternoon. Across the state, 60s and 70s will be felt with light southerly winds. Mother Nature looks to have one last push of rain for the week, though, with a Low-pressure system making its way through the state Friday evening through the day on Saturday. Persistent rain will be mostly overnight and into Saturday morning with more scattered rain showers in the afternoon. On the backside of this pressure system is a cold front which will drop our temperatures into the 30s and 40s for Sunday but clearing skies will be a nice consolation. Monday looks to continue this trend of dry conditions, but cooler temperatures. Air quality will remain in the Good to low-Moderate range as rain and change in wind direction continue to persist throughout the weekend. With warmer temperatures becoming more frequent, and summer on the horizon, increases in Ozone and wildfire season may warrant issuances of Air Quality Alerts. We will only be issuing Air Quality Alerts for Ozone, PM2.5, or both, going forward when we expect concentrations to reach or exceed the Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, or Hazardous ranges. Within these Alerts, we will specify which pollutant the Alert is for, what Air Quality Index category is expected, and the timing and area that is being impacted. EXTENDED FORECAST: Warmer temperatures return next week after a few days of cooler temperatures. Air quality will remain in the Good range.
| Range | 0 - 50 | 51 - 100 | 101 - 150 | 151 - 200 | 201 - 300 | 301 - 500 |
| Color | ||||||
| Category | Good | Moderate | Unhealthy for Sensitive Groups | Unhealthy | Very Unhealthy | Hazardous |
Last Updated 17 minutes ago
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.