Air Quality Outlook – July 10–12, 2025
As we head into the weekend, air quality remains mostly stable across lower Michigan. Here’s what to expect in the days ahead.
Quick Summary
Ozone (O₃): Expected to remain in the Good (Green AQI) to Moderate (Yellow AQI) range
Fine Particulate Matter (PM2.5): Daily averages will fall between upper Good and low Moderate
Weather & Air Quality Breakdown
Thursday (July 10):
High pressure will bring calm conditions and light winds
Ozone and PM2.5 levels expected to stay in the Good to low-Moderate range
Friday (July 11):
A disturbance brings increasing clouds and potential rain
These conditions will help limit ozone buildup
Fine particulate levels will hover in the low-Moderate range
Saturday (July 12):
A warm front moves north, followed by a cold front later in the day
Precipitation and cloud cover will likely keep ozone in check
Wildfire smoke from Canada may move into the region by late Saturday—forecasters are monitoring this closely for potential impacts on PM2.5
Extended Outlook
Looking ahead to early next week, forecast models show dry and warm conditions returning. This could lead to rising pollution levels, especially ozone. We’ll continue to monitor for any changes.
Next Update
The next air quality update will be posted on Saturday, July 12, 2025. Check back then for the latest conditions and outlook.