I live outside of Boulder in Lyons and you are right to be concerned about how dry it is here. You should also be careful about leaving your guitar (even in its case) in your jeep for extended periods – the sun gets very hot and car interiors can bake. August can be pretty dry (I’d guess 16% on average) so keep your guitar in your case with 2 Boveda 49% packs in a saddlebag in your guitar’s sound hole and another pouch up by the headstock. That’s how I keep mine year round and have no problems. I also humidify my house now. Right now it’s raining and my house is at 53%, but that’s a pretty rare occurrence. Have a great time and make sure you stop by eTown, see some live music, and come join a bluegrass jam – there are too many locally to list.