I had been wondering all day how cold it had been, remember we were at 7,000 ft. When we finally got back down to the main highway to drive out, I looked up and noticed the temp on the mirror of the Jeep said it was 48 and that was at 12:30PM! So, when I noticed it was getting colder when we first started out on our tour, it must have been in the lower 40's, maybe even the high 30's....BRRR!!!!