The National Weather Service issued an Extreme Heat Warning for the Phoenix metropolitan area effective Monday, August 15 at 10 a.m. MST through Friday, August 21 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 109 to 113 degrees, with overnight lows between 88 and 92 degrees.
Residents should take extra precautions, especially those who work or spend time outdoors. Heat-related illnesses increase significantly during extreme heat events; overexposure can cause heat cramps, heat exhaustion, and heat stroke. Reschedule strenuous activities to early morning or evening when possible. Maricopa County residents can call 2-1-1 to locate free cooling centers, transportation, water, and other resources.
Source: National Weather Service.
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- National Weather Service retrieved 15/08/2026 17:10
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 15/08/2026 17:10. Every claim traces to a source.
