Arches is great, as is Canyonlands, but it is indeed very hot there now. A colleague just returned from a long weekend there and said it was 105. Spring or fall are better times for Moab.
Hmm... thanks mje. Maybe better to just interstate it through and minimize the cooking time in Utah then?
I've fallen asleep while motorcycling on that boring stretch of 70, but I'm older now, get enough sleep, and will have some books-on-CD burned onto an MP3 player this time.