Thanks for the advice, I appreciate it! That was kind of my thoughts too, but it is the mountains so who knows hahaNot sure if this is helpful, but a couple years back I camped on the North Slope around Oct 10th. I hiked in one evening in typical cool fall weather, very pleasant. I woke up to 12-14" of snow. I think keeping an eye on the 8-14 day NOAA forecast should give you a good idea of whether you're preparing for "fall" conditions, or winter conditions.