A few thoughts here. The timing of the rut for deer is just like elk. It does not vary by year and is not weather dependent. The biggest buck I killed in Montana I shot on Veteran's Day during a stretch when day time highs were hitting mid to upper 80's every day. The same day I killed mine, my wife nearly had a crack at one of the biggest deer I've ever laid eyes on. He had his nose so far up a does hiney he didn't care we were around. Unfortunately the does did.
A buddy of mine killed a great buck several years ago during the same time frame. He had permission to hunt a very good private ranch. EVERY buck we saw was with does, or looking for does. It was also one of those magical days where there was a couple of inches of snow on the ground and sunny. Spotting visibility was excellent.
You can have a four day blizzard the first week of November, and 80's two weeks later. Or, vice versa. It's all a crap shoot with the weather, but as pointed out above the one constant is that the hunting pressure will be there. I personally have found the best hunting in Montana to be the first 10 days of November, when one factors in pressure, timing of the rut, etc.
