We've pulled in the snow before and it was uneventful. Keep your eyes way out in front of your vehicle to spot problems or potential problems in advance. When I ride with others I've noticed that they're not aware of what's going on a mile or even a half mile down the road.
I would suggest driving at night. It's usually some other driver that causes problems.
When you're out of the snow make sure and rinse the undersides of your RV off as soon as you can. The salt and deicer will really mess up your RV. RV's have almost no corrosion protection unlike vehicles.
Travel safe.