Expect periods of light to moderate rainfall throughout your Saturday. Highs will be mild to start, tapping out into the lower 40s. A cold front will track in late day and cool temperatures down quite a bit. This will also switch over remaining rain showers to snow with minor accumulation possible. 

Sunday will be mainly dry throughout with cloudy sky. Highs will be colder only making it into the lower 30s. Low pressure will lift from the Midwest through Christmas Eve into Christmas Morning with light snow accumulation anywhere from 1-3".