Absolutely impossible to forecast the Rockies/region that far off. At best, you may get a glimps at what it could be through Monday the 8th. http://www.nws.noaa.gov/

In this region you just pack for all possibilities. Sunscreen to snowshoes and everything in between. It could be snowin' and blowin' at Tensleep and swimming pool weather at Buffalo.

Sorry, but that's the facts. The deer are there UNTIL heavy snows fall and that moves them down to winter range. So you just have to make the best of it, depending on conditions, when you get there.

Good luck, and good hunting.