I was out there last December. The weather was perfect (sunny and cool). I didn't hike all the way out to the big arch (I was on a tight schedule), but hiked to the point where you can see. I definitely want to make it out there again.
For some outstanding mountain backpacking, the Naturalist Basin in the high Uintas is amazing
Thanks for the info. I can't wait to go out to Utah again for my next vacation.
I love this place.