 From ABC News, I'm Michelle Franzen. Extreme heat posing a danger this Fourth of July holiday in western states. Dangerous triple-digit temperatures could sort a new record. Both Las Vegas and Death Valley are poised to possibly hit their hottest temperatures ever recorded. For Las Vegas, it would be anything above 117 degrees. And next week, Las Vegas could hit 119 degrees and stay there for days. This guy is out camping in the mountains of Southern California.