As you problem know early November in Montana can mean a lot of different things depending on the year (or area). I would be prepared for snow and cold.
If you're hunting mule deer in the SW corner, likely you'll be pretty high too, so even more likely snow and cold.
These are tough conditions to nail down the perfect clothing system as you'll be likely going from climbing and hot to sitting and cold.
You'll want some light base layers that move moisture well and an active insulating layer over the top of that (if base layers alone are too cold). You'll want a very good puffy jacket and probably puffy pants if you plan on a lot of glassing (I would plan on a lot of glassing personally

).
For sitting and cutting wind, a hardshell (rain jacket) will do the trick and likely something you might have already with anyways.
I'd make a list for some snow and cold and one for a lot of snow and really cold- I think clothing would be relatively similar, boots would change (for me). When it gets a week out or so, you can get some decently accurate weather forecasts to foretell what conditions you'll likely face.