FORECAST SUMMARY: Monday, January 5, 2026 - Friday, January 9, 2026
PM-2.5: 24-hour daily average Fine Particulate concentrations will average mostly Moderate (Yellow AQI) this forecast period.
FORECAST DISCUSSION:
A few weather systems will impact the region this week. The first disturbance arrives on Tuesday, bringing rain and freezing rain south and mixed precipitation north. High pressure builds in midweek, resulting in generally quiet weather conditions Wednesday and Thursday. Another system approaches from the southwest late Thursday to Friday. Forecast models indicate warmer temperatures with this system, so precipitation will fall mainly as rain as the associated boundary moves through.
The current forecast trends keep surface moisture and light winds over the region much of the week. This combination will keep fine particulate levels in the Moderate range.
EXTENDED FORECAST:
Extended forecast models show a stronger storm system traveling through the region on Saturday. This system will bring snow into the forecast, and cold northerly winds will develop in its wake. Air quality levels late in the period should average mostly Good.
Next Forecast update: Friday, January 9, 2026