The weather will be 40s-50s in some areas, but there may be ice and snow in some parts. Like many said, you can drive your own car through the whole park because the shuttles are not working during this time of the year. This is pretty convenient because you can park at the bottom of each hike you plan.
Keep an eye on weather. Bring warm clothes. It is a beautiful time. I know the one Museum is closed. The Shuttles are closed until Feb. Less people, which is nice.
Some trails may be closed for ice, but it is a really great time to visit if you have enough cold weather gear.
It will be cold, but its also a really beautiful time of year if there is snow. Less people too.
It's going to be really cold
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