Milder, Wet South.

Two jet streams now...one in south keeping it wet there...other in North .
Big change late week with arctic cold wave in Northern Plains...milder for East.  Below...amounts of rainfall expected next 5 days....followed by amount of snowfall over next week.

​Below animated maps for the next 2 days.

Below....Euro Model for Christmas Day.....will explain below map.

Model above shows fair but very cold Plains and Upper Midwest. Rain and mild stretches from Texas Gulf Coast to New England. Extreme Northern New England will see a wintry mix. So based on this...if a white Christmas means to snow on Christmas Day....Unless you are in the No. Rockies...Great Lakes...is no go.   Be safe.