FORECAST SUMMARY: Monday May 4th, 2026, through Friday May 8th, 2026
Ozone:
Ozone concentrations are expected to be in the Good (Green AQI) to Moderate (Yellow AQI) range.
PM2.5:
PM-2.5 concentrations are expected to be in the Good (Green AQI) to low-Moderate (Yellow AQI) range.
FORECAST DISCUSSION:
Spring Strikes Back! At least for today, Monday, as southerly flow brings in warmer air and mostly sunny skies. On the back end of this Star Wars Day is a cold front and associated Low-pressure system which will eclipse Michigan while cooling us down and initiating rain showers across the state. West-Northwest winds will dominate the weather regime with surface temperatures lingering in the low-to-mid 50s for the majority of the week. Mid-week is expected to be mostly dry with rain chances returning for the latter half of the work week on Friday, but as of now, rain will only impact southern portions of Michigan.
For air quality, Monday will be highest day for concentrations due to warmer temperatures and southerly flow. Both Ozone and PM2.5 will cross over into the Moderate range, mostly in the more populated areas of Detroit and Grand Rapids, but wind shifts this week, along with a decrease in temperatures, will bring air quality concentrations back into the Good range.
May the forecast be with you.
EXTENDED FORECAST:
Slight temperature increases are on the horizon for the weekend ahead. Air quality will remain in the Good range.
Next Forecast update: Friday May 8th, 2026