We have towed three different fifth wheels and now drive the MH in those conditions over the past several years thru Montana, Idaho, and Utah. Didn’t like it, but it was what it was/is. We used the refrigerator and kept the furnace on 50 degrees. Most years it would be at freezing or well below for 2 1/2 days or so. Make sure to start out with full propane tanks, and we plugged in or ran the gen overnight to keep the batteries up. We never had a problem with things in the fridge or out in the open, but didn’t put anything that could be hurt in cabinets. Kept the rv winterized until we hit above freezing temps in Nevada. I think you just have to go with what you are comfortable with. I’d 100% rather do it in warmer temps and better road conditions but I notice we seem to always have other rv’s doing the same thing. Have a great trip!
2016 Berkshire XL 40A towing 2016 Jeep Wrangler.
Prior to this Jayco fifth wheel: 24' Eagle, 30' Designer, and 40' Jayco pinnacle.