Highlights
- The National Weather Service issued an Extreme Heat Warning for Scottsdale and Paradise Valley effective until 8 p.m. MST Thursday.
- Afternoon highs of 105 to 109 degrees are forecast, with the NWS flagging a Major Heat Risk across the Phoenix metro.
- Maricopa County residents can call 2-1-1 to locate free cooling centers, transportation, and water.
- Heat stroke is a medical emergency — call 911 if someone is overcome; move them to a cool, shaded location immediately.
EXTREME HEAT WARNING: The National Weather Service in Phoenix issued an Extreme Heat Warning for Scottsdale and Paradise Valley, along with the broader Phoenix metropolitan area, effective until 8 p.m. MST this evening, September 10.
The NWS is forecasting afternoon temperatures of 105 to 109 degrees and has designated the event a Major Heat Risk. 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.
According to the alert, heat-related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. The NWS advises rescheduling strenuous outdoor activity to early morning or evening when possible, wearing lightweight and loose-fitting clothing, and drinking plenty of water.
OSHA recommends scheduling frequent rest breaks in shaded or air-conditioned environments for anyone working outdoors. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is a medical emergency, call 911.
In Maricopa County, residents can call 2-1-1 to find a free cooling center, transportation, water, and additional resources. More information is available at maricopa.gov/heat.
The warning expires at 8 p.m. MST tonight.
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 10/09/2026 18:24
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 10/09/2026 18:24. Every claim traces to a source.
