The Brief Morning showers and thunderstorms gave way to clear skies and temperatures near 106 degrees in Phoenix. Extreme heat warnings are in effect for Phoenix through Sunday, with temperatures expected to reach up to 116 degrees over the weekend. Mountain storms will develop by midday, and storms will move northward throughout the afternoon and evening. You can always check the latest weather conditions by visiting the FOX 10 Phoenix weather page, or download the Free FOX 10 Weather app, which is available on Apple iOS and Android. These storms can cause interruptions in services, such as water, power, and gas," stated Captain Ashley Losch of the Glendale Fire Department.