Expect snow on top, and not much else as the norm for that area. Prepare for a foot of snow, though. So boots, and gaiters. Normal temps would be 30-50 with occasional dips in to the zero area.
I wear either Hanwag Alaska or Zamberlan 980's. Neither is insulated, but they have enough padding in them to be warm. Add a thick sock over my normal hiking sock, and they are good to zero. If it is really cold, I get out the Hoffman pacs.
Since you are flying, what are you driving out there? That time of year, you will need to have chains, a shovel, and tow strap. These aren't suggestions. You need to have them with you.
Jeremy