National Weather Service United States Department of Commerce
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Last Map Update: Thu, Aug 13, 2026 at 10:24:20 pm MST

Early next week, subtropical high pressure will migrate from the Southeast US back to the Desert Southwest and build over the region. This will result in hotter temperatures with little overnight relief in the urban lower elevations. An Extreme Heat Watch has been issued for the Maricopa County, to include the Phoenix Metro, and Pinal County. The Watch will be in effect Monday through Wednesday next week.
After a brief reprieve from the heat, temperatures will gradually warm through the weekend and into the start of next week. Moderate to Major HeatRisk returns by Monday.

 

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