Monday, August 4, 2025 – Tuesday, August 5, 2025
Ozone
Ozone concentrations will range from Good (Green AQI) to Moderate (Yellow AQI).
PM-2.5
Fine particulate levels will be mostly Unhealthy for Sensitive Groups (USG, Orange AQI), with brief periods of Unhealthy (Red AQI) possible.
Forecast Discussion
Wildfire smoke from Canada and a persistent high-pressure system continue to trap haze across Michigan. Most monitors are reporting USG (Orange AQI), with some hitting Unhealthy (Red AQI) levels.
Conditions are expected to stay hazy through Tuesday. Improvements may come mid-week as the high-pressure system moves out, but forecasts will be updated as needed.
Ozone could rise later this week, especially with warmer temperatures and lingering pollutants.
Extended Forecast
Air quality will remain dependent on smoke movement and possible ozone increases later in the week.