 Spokane, Washington, and northern Idaho also hitting triple digits, as well as Arizona, with Phoenix hitting 115 degrees, not seen since 1985. Las Vegas hit a record Sunday reaching 120 degrees, and this heat has turned deadly. Four people died from heat-related illness in 100-degree-plus temperatures in Portland. A motorcyclist riding through Death Valley National Park in California died from the 128-degree record temperature on Saturday. Park Ranger Matthew Lamar.