The National Weather Service issued an Extreme Heat Warning for the Phoenix metropolitan area, including Scottsdale, Paradise Valley, Buckeye, Avondale, Central Phoenix, and the East and Southeast valleys. The warning took effect August 20 at 11:06 PM and remains in effect until 8 PM MST Friday, August 28. Afternoon temperatures are expected to reach 108 to 114 degrees.
Heat-related illnesses increase significantly during extreme heat events, with risks ranging from heat cramps and heat exhaustion to heat stroke without intervention. Residents should take extra precautions if working or spending time outdoors, reschedule strenuous activities to early morning or evening when possible, and wear lightweight, loose-fitting clothing. Maricopa County residents can call 2-1-1 to locate free cooling centers, transportation, water, and other 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 21/08/2026 14:01
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 21/08/2026 14:01. Every claim traces to a source.
