Expires:202512092300;;272335 FPUS55 KPSR 091100 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 400 AM MST Tue Dec 9 2025 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. For a more site specific forecast, please visit weather.gov/phoenix and either (1) Select a location from the dropdown menu above the map or (2) Click a location on the map. You can refine your selection by clicking on the map displayed on the resulting page. CAZ564-565-568-570-092300- Chuckwalla Mountains-Imperial County Southeast-Chiriaco Summit- Chuckwalla Valley- Including the cities of Imperial Hot Mineral Springs, Winterhaven, Chiriaco Summit, and Midland 300 AM PST Tue Dec 9 2025 .TODAY...Sunny. Highs 73 to 78. North wind 10 to 15 mph. .TONIGHT...Clear. Lows 47 to 57. North wind 10 to 15 mph. .WEDNESDAY...Sunny. Highs 75 to 80. North wind 5 to 15 mph. .WEDNESDAY NIGHT...Clear. Lows 47 to 57. North wind 5 to 10 mph. .THURSDAY...Sunny. Highs 76 to 81. North wind 5 to 10 mph. .THURSDAY NIGHT...Clear. Lows 48 to 58. .FRIDAY...Sunny. Highs 73 to 81. .FRIDAY NIGHT...Partly cloudy. Lows 47 to 57. .SATURDAY...Partly sunny. Highs 70 to 78. .SATURDAY NIGHT...Partly cloudy. Lows 47 to 55. .SUNDAY...Partly sunny in the morning then becoming sunny. Highs 70 to 78. .SUNDAY NIGHT...Clear. Lows 46 to 54. .MONDAY...Mostly sunny. Highs 70 to 78. $$