Air Quality Forecast: Thursday, August 7 – Friday, August 8, 2025
Ozone:
8-hour average ozone concentrations are expected to range from Good (Green AQI) to High Moderate (Yellow AQI), with the potential for scattered Unhealthy for Sensitive Groups (USG, Orange AQI).
PM-2.5:
Fine particulate (PM-2.5) concentrations are expected to remain mostly Moderate (Yellow AQI).
Summary:
Air quality continues to improve compared to the previous week. Most areas reported Moderate AQI on Wednesday, with the only USG readings occurring in the Upper Peninsula. Easterly and southerly winds are helping to keep wildfire smoke and ozone precursors out of the region, though hazy conditions may linger due to high humidity and residual particulates.
Ozone levels are expected to remain mostly moderate, though some scattered USG levels are possible Thursday. Cloud cover and scattered showers on Friday should limit additional ozone buildup.
While the worst of the smoke has moved on, wildfires in Canada continue. Forecasts suggest continued southerly winds, which should help keep most smoke north of the state in the coming days.
Next forecast update expected Friday morning.