 We're the talk of the Quad Cities. 1130 a.m. KQ&A Prescott Valley. And on 99.9 FM, K260 BL Prescott. Arizona News Radio. The National Weather Service has issued two days of extreme heat warnings for Arizona's lower deserts. Phoenix meteorologist Catherine Bereslavich says the warnings are in place through Saturday night. The average temperature will probably be around 113 across the lower deserts.