Madman - some of the worst weather in Western Europe is in November! Windy, cold wet and that seeping damp cold that saps energy and strength. But saying that wrap up warm , heated grips and regular stops you should be okay.
Expect Northern Italy to be very wet in this period as well.
Also expect the higher passes to be closed and expect snow showers/storms. The main passes are generally closed from late October to late June.
The Peages and Autoroutes should be snow free but a lot of the accomadation will be closed up, as this is the gap between summer season and the winter sports season. Use the F1's as the will be usually available, cheap and warm after a day in the cold.
Although with the current weather fluctuations it might be still late summer by then !
Have you considered putting the bike on the train ? Quicker , slightly more expensive but you ill enjoy the Italian part of the ride without feeling like you have been in a 4 day fight