Highlights

EXTREME HEAT WARNING: The National Weather Service in Phoenix issued an Extreme Heat Warning covering Scottsdale, Paradise Valley, and eight additional Valley zones effective through 8 p.m. MST Sunday, Aug. 2, with afternoon temperatures forecast at 110 to 117 degrees and heat risk rated Major to Extreme.

The warning, issued July 28 at 1:56 p.m. MST, covers Buckeye/Avondale, Central Phoenix, Deer Valley, East Valley, North Phoenix/Glendale, Northwest Valley, Scottsdale/Paradise Valley, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek.

NWS warns of an increase in heat-related illnesses including heat cramps, heat exhaustion, and heat stroke, noting that heat stroke can lead to death. Anyone overcome by heat should be moved to a cool and shaded location immediately; heat stroke is classified as a medical emergency requiring a call to 9-1-1.

The agency advises rescheduling strenuous outdoor activity to early morning or evening when possible, wearing lightweight and loose-fitting clothing, and drinking plenty of water. The Occupational Safety and Health Administration recommends frequent rest breaks in shaded or air-conditioned environments for outdoor workers.

In Maricopa County, free cooling centers, transportation, and water are available by calling 2-1-1 or visiting maricopa.gov/heat. Public cooling shelters are also available in some areas; county officials can provide locations.

The warning remains in effect until 8 p.m. MST Sunday, Aug. 2.

Sources

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  1. api.weather.gov retrieved 29/07/2026 00:04

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 29/07/2026 00:04. Every claim traces to a source.