FORECAST SUMMARY: Friday April 17th, 2026, through Monday April 20th, 2026
Ozone:
Ozone concentrations are expected to be in the Good (Green AQI) range.
PM-2.5:
PM-2.5 concentrations are expected to be in the Good (Green AQI) to low-Moderate (Yellow AQI) range.
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 Air Quality Index 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. For more information on Air Quality Alerts, the Air Quality Index, and how to sign up for Alert notifications, click here.
EXTENDED FORECAST:
Warmer temperatures return next week after a few days of cooler temperatures. Air quality will remain in the Good range.
Next Forecast update: Monday April 20th, 2026