The National Weather Service issued an Extreme Heat Warning for the Phoenix metropolitan area effective September 9 at 12:22 PM MST through September 10 at 8 PM MST. The warning covers Northwest Valley, Buckeye/Avondale, Cave Creek/New River, Deer Valley, Central Phoenix, North Phoenix/Glendale, Scottsdale/Paradise Valley, East Valley, Fountain Hills/East Mesa, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek. Afternoon temperatures are expected to reach 105 to 109 degrees.
The National Weather Service warns that heat-related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion, which can develop into heat stroke without intervention. Residents are advised to take extra precautions if working or spending time outside and to reschedule strenuous activities to early morning or evening. In Maricopa County, residents can call 2-1-1 to find free cooling centers, transportation, water, and additional resources.
Source: National Weather Service.
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- National Weather Service retrieved 09/09/2026 19:24
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 09/09/2026 19:24. Every claim traces to a source.
