We just returned from a road trip through Colorado, Utah, Nevada, Arizona (Quart) and stayed several days in Yuma. I planned for tough weather conditions, but we had perfect weather until our return trip to Utah when we hit a significant snowstorm in the higher elevations. (Our first in our Class C). I was pleased with how the 25 foot handled. Just in case I purchased snow tire cables on Amazon for the rear tires. We practiced installing them after watching a very helpful Youtube video where they used a tire lift under the inside dually which made installation on the outside tire easy. I also included orange safety vests and gloves in case we had to install them near the highway. (Thankfully those items were not needed)
We have done lots of cold weather camping and have foil covers for bedroom windows and also a portable propane "Buddy" heater in case we lose the motorhome heater or electricity. I also carried a couple of gallons of winterizing liquid in case things got too cold. (Our tanks are heated but exposed)
Cold weather camping usually sends many people home, so if you want little to no crowds and fun travel, give it a try. You can always stop, pull over somewhere safe and hunker down until roads are cleared.