FORECAST SUMMARY: Friday, August 29, 2025, through Tuesday, September 2, 2025
OZONE: 8-hour average Ozone concentrations are expected to be mostly Good (AQI Green).
PM-2.5: 24-hour average Fine Particulate concentrations are also expected to be mostly Good (AQI Green) to scattered Low Moderate (AQI Yellow).
FORECAST DISCUSSION
Cooler than normal weather will continue into the holiday weekend but will gradually climb back to the normal range of around 80 degrees by Monday. Night temperatures will continue to run below normal for chilly evenings. Clear skies make for warming during the day but quickly lose that heat, at night, without the cloud cover. This cool, dry weather trend is due to a surface high pressure cell building over the central Great Lakes.
The cool, dry weather should persist through the Labor Day weekend and into early next week with the next chance of rain coming during Wednesday.
These factors will lead to continued Good Air Quality with the possibility of scattered Low Moderate developing in Southeast Michigan by the end of the forecast period.
EXTENDED FORECAST:
Air Quality is expected to remain Good to Low Moderate entering the next work week.