FORECAST SUMMARY: Friday, November 14, 2025 - Monday, November 17, 2025
PM-2.5: 24-hour daily average Fine Particulate concentrations will average mostly Good (Green AQI), with only a few Moderates (Yellow AQI) possible Friday into Saturday.
FORECAST DISCUSSION:
Dry weather and unseasonably warm temperatures start this forecast period. The dry, warm conditions can be attributed to high pressure and an upper-level ridge south/southeast of the state producing a warm southerly flow over the region. High temperatures on Friday will range in the 50s, and readings could reach the low 60s in the south on Saturday. The next weather system is a low-pressure area on Saturday tracking from west to east just north of Lake Superior. This system brings a cold front from northwest to southeast throughout the day. Precipitation will accompany this weather system; however, southern areas may remain dry. What will be most noticed, however, are the strong northwesterly winds and cold air moving in behind this boundary.
Southerly winds statewide on Friday, lasting into Saturday in the south, could allow for low-Moderate daily averages of fine particulate. Any increase in pollution will improve from late Saturday to Sunday as strong northwesterly winds develop behind the cold front.
EXTENDED FORECAST:
Extended forecast models show dry conditions lingering into the first half of next week. Fine particulate levels during this period are not expected to reach higher than low-Moderate.
Next Forecast update: Monday, November 17, 2025