las vegas average temperatures summer
Hi I am Michele Jaco here today for About.com with an overview of Las Vegas average summer temperatures. Summer Weather in Las Vegas. Summer month are usually May through September with July normally the hottest month with an average high of 104 Â°F and an average low of 79 Â°F, and August is only slightly cooler. Vegas is the desert so humidity is very low, so these temperatures are actually quite comfortable for many.