The National Weather Service issued an Extreme Heat Warning for the Phoenix metropolitan area effective Sunday at 10 a.m. through Monday at 8 p.m. MST. The warning covers Northwest Valley, Buckeye/Avondale, Deer Valley, Central Phoenix, North Phoenix/Glendale, Scottsdale/Paradise Valley, East Valley, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek. Afternoon temperatures are expected to reach 105 to 109 degrees.

Residents should take extra precautions if working or spending time outdoors. Heat-related illnesses increase significantly during extreme heat events; overexposure can cause heat cramps, heat exhaustion, and heat stroke. Maricopa County residents can call 2-1-1 to locate free cooling centers, transportation, water, and additional resources.

Source: National Weather Service.

Sources

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  1. National Weather Service retrieved 09/05/2026 07:36

Authored by The Scottsdale Signal. Drafted by AI from primary-source material under our beat-specific editorial guides; reviewed by humans before publish under our five-gate process. Sources retrieved at 09/05/2026 07:36. Every claim traces to a source.