Well the colder weather is settling in all across Colorado. We have seen some snow but no accumlation at this elevation. Still it has gotten colder and it's time to plan and prepare for your trips a little more. That means having enough layers on (or with you) that you can add to or take off depending on the weather.
I found this was necessary on my trip to the Henry's Fork last week. I had long underwear, my hunting shirt, a mid-weight fleece jacket and my waterproof wading jacket on.