I think you will be fine regardless of the weather situation. Just grab the bull by the horns and tough it out !
I have a Polaris sled too. I've went in twelve inches of snow with the atv though.....That is a nice buck.
Have you got a track kit for the quad in case the snow gets deep?
All the best.
Moon, impressive get out there. Even more impressed with your natural ground blind. If it's not it sure looks like one I'd be in.