Suggestions for an overnighter near Seattle?

I'm looking to work in an overnighter next week in the Seattle area. I don't really know what's around, or in season, backpacking-wise, so I'm hoping for suggestions. I did Buckhorn Wilderness last year, but that was later in the summer.

Just trying to get away from the kids and everyone else, test out the new gear list, see some beauty, find some quiet, etc, without getting lost on snow-covered trails.

Anyone have a good idea for me? Thanks in advance.