Forecast Discussion:
Rain ends this evening. Northerly winds on Saturday, diminishing during the day, and a mix of clouds and sun. Cool air aloft will help mixing and the air mass entering from the north will be clean. Good air quality Saturday.

Extended Forecast:
High pressure is briefly overhead on Sunday. Light winds and mostly sunny skies will push both ozone and PM concentrations just into the moderate range. Rain returns Monday with good air quality into Tuesday. -Ryan