You could do a couple of things.
Weigh yourself the week before the holiday, and then put away the scale until a week after the holiday. However, still planning to have awesome on-plan days throughout the weeks.
Or you could adjust your goal to fit how the scale is working. Maybe raise the goal weight by five pounds or so, so that it's more realistic with what you're at now. After all, goals don't have to be set in stone.
Whatever you choose, don't allow an arbitrary number on a piece of plastic to ruin a fun holiday. That's not worth it. If it means putting away the scale, then do that. =)
~Made of star stuff~