New to RV's and need some advice for winter....

Dismal report on the freezing weather vs RVing report. My DW and I are planning a trip to Yellowstone and Mt Rushmore in the comming weeks. 34 degrees for overnight lows but a brisk 60 something during the days. The very windows that I'm so proud of might prove to be a problem this trip. We'll try to stay un-frozen and let y'all know how it went. Maybe, with some extra comforter blankets to block off windows and the front compartment . . .