Is it dangerous to drive when snowing?If you are not even aware of the potential dangers of driving in snow, I recommend that you do not drive in a region where there is a relatively high chance of snow.
What weather to expect in late November in those area?
I believe there is a high chance of snow in the Okuhida region and a moderate chance of snow in the Takayama and Shirakawago regions.
Fortunately, public transportation tends to be good in Takayama, Shirakawago and Okuhida (except Gokayama), so I recommend that you use buses.