Being that we were there the first week of this past November, the crowds weren't bad, MK got a little crowded after 11 am or so (the usual). I don't remember there being long waits until the afternoon.
The other parks were pretty comfy. The weather was very nice this past year, actually on the warm side but not real humid. (but warmer than some previous Novembers)
It normally is cool(60s) in the morning and at night and warm (80s) during the day.