FORECAST SUMMARY: Friday, December 5, 2025 through Monday, December 8, 2025
PM-2.5: 24-hour average Fine Particulate concentrations are expected to be Good (AQI Green) to Low Moderate (AQI Yellow).
FORECAST DISCUSSION
Clear skies and calm winds produced a chilly Thursday night with temperatures down into the single digits. Clouds are redeveloping over the area Friday morning, as the high pressure moves east and follow-up southwest winds bring clouds and eventually snow showers.
The models are indicating some concern for some light freezing drizzle around daybreak, Saturday morning. This does not appear to be a long duration event but could be just enough to cause some minor impacts during Saturday morning travels. Colder air comes in by mid Saturday morning and precipitation should taper off as weak high pressure builds in.
A short wave pushes through the area, Saturday night. Combined with lake moisture, it will produce some light snow through Sunday morning in West Michigan. Stronger high pressure will build over the area, later Sunday, and linger through Monday.
Air Quality starts out with a mix of Good and Low Moderate AQI readings. However, with a cold snowpack and some high pressure, concentrations will likely remain in the Good to Low Moderate range.
EXTENDED FORECAST:
Air Quality is expected to remain Good to Low Moderate entering the next work week. The next best chance for accumulating snow occurs next Tuesday and Wednesday.