National Weather Service United States Department of Commerce

Scattered showers and a few thunderstorms will be possible early this morning.
A decaying complex of showers and storms across southeast AZ is likely to provide enough support for some additional scattered high-based showers and isolated thunderstorms across south-central AZ this morning. Localized gusty winds will be possible along with the isolated thunderstorm potential.
Storm chances throughout the majority of the week will mainly be confined to the AZ High terrain. High temperatures will be about 4 to 7 degrees above normal through Wednesday, resulting in widespread Moderate to areas of Major HeatRisk. However, as high pressure restrengthens over the Desert Southwest by the latter half of the week into this weekend, temperatures will heat up to near record levels, resulting in widespread Major to Extreme HeatRisk.
Areas of Major HeatRisk will persist for at least the Phoenix metro, Yuma, and El Centro through midweek before becoming widespread with areas of Extreme HeatRisk developing by Friday. The peak of this heatwave is likely to be Friday and Saturday with lower desert highs reaching 115-120°F. Little relief is expected at night with overnight lows mainly in the upper 80s and lower 90s to as high as the mid 90s by the weekend.

 

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