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Extreme Heat Warning Issued for South Central Arizona

July 26, 2026 · wweather1 editorial · 2 min read

The National Weather Service (NWS) Phoenix AZ has issued an Extreme Heat Warning for south central Arizona, including the Phoenix metropolitan area. The warning, which forecasts dangerously hot conditions with afternoon temperatures between 107 and 111 degrees, is in effect from July 26 at 3:21 AM MST until July 27 at 8:00 PM MST.

An Extreme Heat Warning has been issued by the National Weather Service Phoenix AZ, commencing July 26 at 3:21 AM MST and concluding on July 27 at 8:00 PM MST. The affected areas include south central Arizona, encompassing the Phoenix metropolitan area, specifically 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. Forecasts indicate dangerously hot conditions, with afternoon temperatures expected to reach 107 to 111 degrees, representing a Major Heat Risk.

During extreme heat events, heat related illnesses increase significantly. Overexposure to these conditions can lead to the development of heat cramps and heat exhaustion. Without intervention, these ailments can progress to heat stroke.

The NWS advises that an Extreme Heat Warning signifies a period of very hot temperatures, even by local standards. Actions should be taken to lessen the impact. In Maricopa County, individuals can call 2-1-1 to locate free cooling centers, transportation, and water. Public cooling shelters are available in some areas; residents should consult county officials for further details.

Why it is dangerous and what to do

⚠️ Safety
• Take extra precautions if working or spending time outside.
• Reschedule strenuous activities to early morning or evening when possible.
• Wear lightweight and loose-fitting clothing and drink plenty of water.
• Call 911 immediately for anyone overcome by heat exhibiting signs of heat stroke.
📊 The numbers, from wweather1 data
Phoenix: now +41°, Clear.
That is 2° above the July climate norm.
The record for this date is +47° (1995).
Three-day forecast: 26 July: +43°/+33° · 27 July: +43°/+32° · 28 July: +42°/+33°
The figures are computed automatically from the Open-Meteo/ERA5 archive — no eyeball estimates.

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

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