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Extreme Heat Watch Issued for Phoenix Metropolitan Area

August 14, 2026 · wweather1 editorial · 2 min read

The National Weather Service in Phoenix, Arizona, has issued an Extreme Heat Watch for the Phoenix metropolitan area from Monday morning through Wednesday evening. Afternoon temperatures are expected to reach between 109 and 112 degrees.

The National Weather Service in Phoenix has issued an Extreme Heat Watch for the Phoenix metropolitan area, taking effect Monday morning and remaining active until Wednesday evening at 8:00 PM MST. Afternoon temperatures are projected to range from 109 to 112 degrees, generating a major heat risk.

Specific locations covered under the watch include Central Phoenix, Deer Valley, Northwest Valley, Buckeye/Avondale, North Phoenix/Glendale, Scottsdale/Paradise Valley, East Valley, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek. Officials caution that heat-related illnesses increase significantly during extreme heat events, with overexposure potentially leading to heat cramps, heat exhaustion, and heat stroke.

In Maricopa County, residents can call 2-1-1 or visit https://www.maricopa.gov/heat to find free cooling centers, transportation, and water. For outdoor workers, the Occupational Safety and Health Administration recommends frequent rest breaks in shaded or air-conditioned environments, and emergency services should be contacted immediately if someone is overcome by heat stroke.

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.
• Take frequent rest breaks in shaded or air-conditioned areas if working outdoors.
• Call 2-1-1 in Maricopa County to access free cooling centers, water, and transportation.
📊 The numbers, from wweather1 data
Phoenix: now +38°, Mostly clear.
That is 2° below the August climate norm.
The record for this date is +46° (2020).
Three-day forecast: 14 August: +38°/+28° · 15 August: +41°/+27° · 16 August: +39°/+28°
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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