I rode in the snow at night with my raingear and winter gloves on one time. I had to lift the visor a tad on my full face because it was fogging up like crazy. The snow wasn't settling yet and it was early in the storm. I couldn't really avoid the trip as the snow would have only gotten worse, but I didn't ride way too fast.
Plain rain gear with tennis shoes just doesn't work. Had many soaked socks that way. I'll wear boots next time, or my
drysuit with the built-in booties (socks).