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HomeWeather news → NWS Issues Extreme Heat Warning for Phoenix Metropolitan Area Through August 29
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NWS Issues Extreme Heat Warning for Phoenix Metropolitan Area Through August 29

August 24, 2026 · wweather1 editorial · 1 min read

The National Weather Service in Phoenix has issued an Extreme Heat Warning for the Phoenix metropolitan area through 8:00 PM MST on Saturday, August 29. Afternoon temperatures are forecast to reach between 108 and 116 degrees.

The alert was issued on August 24 at 1:07 AM MST by NWS Phoenix AZ. Specific locations affected include the Northwest Valley, Buckeye/Avondale, Deer Valley, Central Phoenix, North Phoenix/Glendale, Scottsdale/Paradise Valley, East Valley, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek.

Officials warn of an extreme heat risk that increases the likelihood of heat-related illnesses, such as heat cramps, heat exhaustion, and heat stroke. The National Weather Service noted that heat stroke can lead to death.

In Maricopa County, residents can call 2-1-1 or visit https://www.maricopa.gov/heat to locate free public cooling centers, transportation, and water.

Why it is dangerous and what to do

⚠️ Safety
• Drink plenty of water and wear lightweight, loose-fitting clothing.
• Reschedule strenuous outdoor activities to early morning or evening hours.
• Schedule frequent rest breaks in shaded or air-conditioned areas during outdoor work.
• Move anyone overcome by heat to a cool, shaded location and call 911 immediately if heat stroke is suspected.
📊 The numbers, from wweather1 data
Phoenix: now +42°, Clear.
That is 5° above the September climate norm.
The record for this date is +43° (1979).
Three-day forecast: 8 September: +42°/+31° · 9 September: +40°/+28° · 10 September: +41°/+29°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

🌍 Weather in nearby cities

📰 Data source: NWS. Forecast and analysis — wweather1, based on Open-Meteo / met.no data.

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