CA Phoenix AZ Zone Forecast for Friday, October 20, 2017 _____ 377 FPUS55 KPSR 210917 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 217 AM MST Sat Oct 21 2017 This is an automatically generated product that provides average values for large geographical areas and may not be representative of the exact location that you are interested in.