
"Cities that could set new annual extreme temperature marks include Flagstaff, Ariz., Las Vegas and Reno, Nev. In Flagstaff, Ariz., the all-time record high is 97 set on July 5, 1973. In Las Vegas, the all-time record high is 117 degrees set on July 19, 2005 and July 24, 1942. At Reno, the all-time high is 108 degrees set most recently on July 5, 2007. Death Valley, Calif. could reach their hottest June temperature on record of 128 degrees set June 30, 1994."
Ref: Accuweather.com
The reader need not fear for poor old DonDiego's safety. The Appalachian Region will be seasonably warm with a likelihood of pleasant, life-giving thunderstorms over the next several days.