FORECAST SUMMARY: Monday February 9th, 2026, through Friday February 13th, 2026
PM-2.5:
PM-2.5 concentrations are expected to be in the Good (Green AQI) to Moderate (Yellow AQI) range.
FORECAST DISCUSSION:
As we approach the middle of February, a quick thaw is in store for Tuesday with surface temperatures potentially reaching the 40s in some southern Michigan areas. This is due to a pressure system and associated warm front that will eclipse southern portion of the state throughout Tuesday. On the back side, however, temperatures cool back down to below freezing until we reach the latter half of the week when temperatures jump back up above freezing statewide. There does not appear to be any snowmakers heading towards the Great Lakes state, aside from local lake-effect snow showers predominantly in the Upper Peninsula.
For air quality, with a few days this week in the mid-to-upper 30s F, melting snow may lead to increases in PM-2.5 concentrations into the upper Moderate range. These increases are expected to be limited to a few hours, especially on Tuesday when wind speeds will help to disperse any particulate release. The second warm up during the latter half of the week may see lighter winds so mid-to-high Moderate concentrations may hang around longer. If any changes in the forecast warrant an update, one will be sent out. But overall, mid-Moderate PM-2.5 concentrations should be expected this week.
EXTENDED FORECAST:
We may see a weekend completely above freezing ahead of us, which may cause an increase in PM-2.5 concentrations. A closer look will be made later this week.
Next Forecast update: Friday February 13th, 2026