Gaucho100K-
I'll be in LAS Aug 23-25, staying with friends. I usually fly down about every two months. Let me know when you set up your trip and maybe we can get together for drinks if the dates work. I fly home on the 25th around 1600.
I would expect temps up to 120F that time of year. It's guaranteed to be hot. You'll find yourself not wanting to venture outside into heat like that, preferring to stay somewhere air conditioned.