The National Weather Service issued an Extreme Heat Warning for the greater Phoenix Metro area effective Sunday at 10 a.m. through Tuesday at 8 p.m. MST. Afternoon temperatures are expected to reach 105 to 109 degrees. 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.
Heat-related illnesses increase significantly during extreme heat events. Residents should take extra precautions if working or spending time outdoors, reschedule strenuous activities to early morning or evening when possible, and wear lightweight clothing while drinking plenty of water. Maricopa County residents can call 2-1-1 to locate free cooling centers, transportation, water, and additional resources.
Source: National Weather Service.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- National Weather Service retrieved 09/05/2026 21:30
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 21:30. Every claim traces to a source.