I googled this exact phrase a few weeks ago in hopes of finding a little guidance. September weather in Montana and Wyoming goes from 20 degrees at night to 80 degrees during the day, with hotter and colder days, too. It could be snowing, it could be sunny. I ended up being very grateful I packed certain things, while wishing I had left some items in my suitcase at home. I hope that what I learned will help anyone else heading out West in September.
– And last, but absolutely not least: a Bandaid Blister Block stick. This is essential. If you aren’t already on the blister stick bandwagon, you rub this stick in places you think you might get blisters and it prevents them. It’s magic. Obviously, the first place you think of are your feet, and this is a life saver when breaking in a new pair of shoes (hiking or otherwise). However, I used it to keep from getting blisters where my backpack was rubbing my arms, as well. It was essential and I never leave home without one of these in my purse.