The National Weather Service issued an Extreme Heat Warning for the Phoenix metropolitan area on July 21, effective 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 110 to 115 degrees.
Residents should take precautions to avoid heat-related illness, including rescheduling strenuous outdoor activities to early morning or evening hours and drinking plenty of water. Heat exposure can cause cramps, exhaustion, and potentially fatal heat stroke. Maricopa County residents can call 2-1-1 to locate free cooling centers, transportation, water, and other resources.
Source: National Weather Service.
Sources
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- National Weather Service retrieved 21/07/2026 18:59
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 21/07/2026 18:59. Every claim traces to a source.
