Grand Teton National Park is beginning its shift to winter operations. Most campgrounds and facilities are closing for the season, though Teton Park Road will be groomed for skiing and snowshoeing starting in mid-December.
via Snacks News

Most park facilities and campgrounds close for the season between October and April, but Grand Teton remains open for winter recreation. The Foundation will fund grooming on Teton Park Road for skiing and snowshoeing starting in mid-December. Be sure to check the current status of specific roads and services before heading out from Jackson.