We made this trip a couple of times last fall. First with Ken, and then Ken wanted Viki to see it, so we went again. It was a little chilly both times, but not terrible. It such a cool drive. I love seeing the cliffs along the way. The first time it was cloudy enough that you couldn't see the Great Salt Lake, but the second time we could finally see it.
They've been getting a lot of snow this spring, so it may be June or July before we can get through there again.