A wintry mix tonight (Sunday 12/24). Wet snow and rain not really getting going until after 9 or 10pm. Maybe an inch or two of slushy accumulation, ending before daybreak on Monday 12/25. There might be some slippery spots overnight, especially on bridges/overpasses. But unless you're out late on Christmas eve, or you are Santa Claus, you will not experience any travel issues with this little event.
Christmas day will be colder (high 35) and very windy. (Sustained winds 20-30mph with gusts 40-50mph!) Good day to hunker down and spend time with the fam.
Tuesday 12/26 will be sunny and cold: high 29, low 17. Still kinda breezy.
Wednesday 12/27 and Thursday 12/28 will be sunny and a bit colder: highs in the mid 20s, lows in the low teens.
Friday 12/29 is definitely going to be cloudy and cold (high in the mid 20s), but right now there's about a 50/50 shot of having a snow event.
Another potential snow event will be around on Saturday 12/30 (late afternoon, evening, and overnight).
Stay tuned for updates on the 12/29 and 12/30 events.
Then it's just continued sunny and cold on 12/31 and 1/1. My fervent annual hope that snow/ice/rain will thwart the Mummers Parade by dampening its inimitable melange of sequins and racism - well, that wish looks as though it will be unfulfilled this year - but at least it will be cold (20s most of the day).
Enjoy the times of the holiday. Family. Hearth, or whatever.
Monsoon
P.S. Remember to keep submitting questions about weather or not-weather that may well be answered in a forthcoming post!