Web4 days ago · news headlines. Phoenix, yuma, and el centro september 2024 climate data. This day in weather history. Excessive heat warning until october 7, 08:00 pm mst. Web3 days ago · the excessive heat warning remains in effect through this evening for the greater phoenix area and southwest imperial county. High temperatures between 104 to 110 degrees can be expected in the warned areas. After 76 hours, data will be trimmed in the chart. A station that reports 4 times an hour will begin trimming data after 250…