Just got back from a week and a half in the Sawtooths. Absolutely gorgeous. You'll love it. While it'll be different in Oct., it was actually quite warm when we went to bed, but got quite chilly around 3-4 am. More than once I woke up and put on my synth jacket to finish out the night.

There's a fire burning in the (I believe) Pioneer Mountains, next range over from where we were. Wilderness Crew said it'll probably burn until either rain or snow puts it out. We could smell the smoke on much of our hike - even had very small amounts of ash fall on us a couple of times.