I would recomend skinning it as soon as you hang it but as long as its in the shade and relatively cool it should be good for awhile. If it does warm up, I would suggest butchering it pronto! If you for some reason unable to butcher it you could put bags of ice in the carcass to cool it down. I know alot of people who do that when hunting mulies in the fall.
P.S. Im from saskatchewan so the only thing i have to worry about is the deer freezing
