Death Valley could approach 130 F as heat intensifies over SouthwestTemperatures in the scorching hot Southwest are expected to climb higher in the coming days. Locations including Phoenix and Las Vegas could flirt with all-time record highs. The dangerously hot weather will raise the risk of wildfires and potentially challenge all-time record highs in some cities. As of Saturday, July 15, Phoenix has experienced 15 days in a row with high temperatures ranging from 110 to 118. Las Vegas is another desert metro area that has an excellent chance of approaching its all-time record high.