Expires:202512272300;;309385 FPUS55 KPSR 271100 ZFPPSR Zone Forecast Product for Southwest Arizona/Southeast California National Weather Service Phoenix AZ 400 AM MST Sat Dec 27 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. CAZ564-565-568-570-272300- 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 Sat Dec 27 2025 .TODAY...Mostly sunny. Highs 64 to 69. Northwest wind 5 to 15 mph. .TONIGHT...Clear. Lows 39 to 49. Northwest wind 10 to 20 mph. .SUNDAY...Sunny and breezy. Highs 63 to 68. North wind 15 to 25 mph. .SUNDAY NIGHT...Clear and breezy. Lows 38 to 48. North wind 15 to 25 mph. .MONDAY...Sunny and windy. Highs 63 to 68. North wind 15 to 25 mph. Gusts up to 35 mph. .MONDAY NIGHT...Clear. Lows 40 to 50. .TUESDAY...Partly sunny. Highs 60 to 70. .TUESDAY NIGHT...Partly cloudy. Lows 43 to 51. .WEDNESDAY...Considerable cloudiness. A 20 percent chance of showers in the afternoon. Highs 61 to 69. .WEDNESDAY NIGHT...Mostly cloudy with a 30 percent chance of showers. Lows 46 to 52. .NEW YEARS DAY...Mostly cloudy with a 50 percent chance of showers. Highs 56 to 66. Rainfall less than a tenth of an inch. .THURSDAY NIGHT...Mostly cloudy with a 40 percent chance of showers. Lows 47 to 53. .FRIDAY...Mostly cloudy in the morning then becoming partly cloudy. A 30 percent chance of showers. Highs 59 to 69. $$