Highlights
- An Extreme Heat Warning is in effect for Scottsdale, Paradise Valley, and the broader Phoenix metro until 8 p.m. Saturday, Aug. 29.
- Afternoon temperatures are forecast between 107 and 113 degrees, carrying a Major to Extreme Heat Risk rating.
- Maricopa County residents can call 2-1-1 to locate free cooling centers, transportation, and water.
- Heat stroke is classified as a medical emergency; anyone overcome by heat should be moved to shade and 911 called immediately.
EXTREME HEAT WARNING: The National Weather Service in Phoenix has issued an Extreme Heat Warning for Scottsdale, Paradise Valley, and the broader Phoenix metropolitan area through 8 p.m. MST Saturday, Aug. 29, citing dangerously hot conditions with afternoon temperatures forecast between 107 and 113 degrees.
The warning, issued at 12:22 a.m. MST Friday by NWS Phoenix, covers Northwest Valley, Buckeye/Avondale, Deer Valley, Central Phoenix, North Phoenix/Glendale, Scottsdale/Paradise Valley, East Valley, South Mountain/Ahwatukee, and the Southeast Valley/Queen Creek corridor. The agency rates the event as a Major to Extreme Heat Risk.
The NWS warns that heat-related illnesses increase significantly during events of this magnitude, with overexposure capable of progressing from heat cramps and heat exhaustion to heat stroke. Anyone overcome by heat should be moved to a cool, shaded location immediately; heat stroke requires a 911 call.
For outdoor workers, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air-conditioned environments, wearing lightweight and loose-fitting clothing, and drinking plenty of water. Strenuous activity should be moved to early morning or evening when possible.
Maricopa County residents can call 2-1-1 to find a free cooling center, transportation, water, and additional resources, or visit maricopa.gov/heat.
The warning expires at 8 p.m. MST Saturday.
Sources
Every factual claim in this article traces to one of the sources below. See how we work for the editorial process.
- api.weather.gov retrieved 28/08/2026 07:26
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 28/08/2026 07:26. Every claim traces to a source.
