National Weather Service United States Department of Commerce
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Last Map Update: Sat, Aug 23, 2025 at 12:44:32 pm MST

Very hot temperatures will continue through this weekend with widespread major HeatRisk. Overnight lows will also be quite warm, with mostly lower 90s in the Phoenix Metro. As a result, an Extreme Heat Warning remains in effect for portions of the area through Sunday.
Temperatures will remain above normal into this weekend, with highs reaching around 110 degrees at most lower desert locales. These temperatures will result in a widespread major HeatRisk. Cooler temperatures will settle into the region by early next week.
Thunderstorm chances will mostly favor AZ high terrain areas and parts of Southwest AZ and Southeast CA this weekend. Increasing moisture levels early next week will bring better chances for thunderstorm activity across the region.

 

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