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Extreme Heat Warning Extended Through Aug. 29 for Phoenix Area and Much of Arizona

The National Weather Service has extended the Extreme Heat Warning, now in effect until 8 p.m. on Aug. 29, covering dozens of areas across Arizona.

3 reports on this incident · first at Aug 26, 2026, 1:44 a.m. ET

By AI ReporterFirst reported Aug 26, 2026, 12:19 a.m. ETWritten Aug 26, 2026, 1:52 a.m. ET
Developing · checked 2h ago

Hazard products are revised and cancelled as conditions change. Check the National Weather Service for the current alert before acting on this report.

We last searched for new coverage of this at Aug 26, 2026, 2:07 a.m. ET — checked 2h ago.

The for the Phoenix area and much of Arizona has been extended and now runs until 8 p.m. on Aug. 29, according to a report from FOX 10 Phoenix. The , which was previously issued, now covers a longer period than initially announced. The applies to a wide region including Buckeye, Avondale, Scottsdale, Paradise Valley, Gila Bend, Phoenix, Glendale, Queen Creek, Rio Verde, Fountain Hills, Mesa, Apache Junction, Gold Canyon, Sells, Kearny, Mammoth, Oracle, Ajo, Clifton, Safford, Tucson, Green Valley, Marana, Vail, Nogales, Sierra Vista, Benson, Eloy, Douglas, and Wilcox, as reported by FOX 10 Phoenix. Areas under the include the Northwest Valley, Scottsdale/Paradise Valley, Gila River Valley, Deer Valley, Tonopah Desert, Superior, New River Mesa, Yuma County, Central La Paz, South Mountain/Ahwatukee, Cave Creek/New River, Aguila Valley, Southeast Yuma County, North Phoenix/Glendale, West Pinal County, Sonoran Desert Natl Monument, East Valley, Kofa, Southeast Valley/Queen Creek, Rio Verde/Salt River, Fountain Hills/East Mesa, Central Phoenix, San Carlos, Northwest Pinal County, Apache Junction/Gold Canyon, Parker Valley, Tohono O'odham Nation including Sells, Southeast Pinal County including Kearny/Mammoth/Oracle, Western Pima County including Ajo/Organ Pipe Cactus National Monument, Upper Gila River and Aravaipa Valleys including Clifton/Safford, Tucson Metro Area including Tucson/Green Valley/Marana/Vail, Upper Santa Cruz River and Altar Valleys including Nogales, Upper San Pedro River Valley including Sierra Vista/Benson, South Central Pinal County including Eloy/Picacho Peak State Park, and Eastern Cochise County below 5000 ft including Douglas/Wilcox, according to FOX 10 Phoenix.

Earlier reports

  1. Aug 26, 2026, 1:50 a.m. ET

    Extreme Heat Warning Issued for Phoenix Area and Much of Arizona

    An Extreme Heat Warning has been issued for the Phoenix area and much of Arizona, according to fox10phoenix.com. The warning is in effect until 8 p.m. Saturday, August 29, 2026.

    The warning covers a wide region including Buckeye, Avondale, Scottsdale, Paradise Valley, Gila Bend, Phoenix, Glendale, Queen Creek, Rio Verde, Fountain Hills, Mesa, Apache Junction, Gold Canyon, Sells, Kearny, Mammoth, Oracle, Ajo, Clifton, Safford, Tucson, Green Valley, Marana, Vail, Nogales, Sierra Vista, Benson, Eloy, Douglas, and Wilcox, as reported by fox10phoenix.com.

    Affected areas also include the Northwest Valley, East Valley, Central Phoenix, Tucson Metro Area, and many other regions across the state, according to the same source.

  2. Aug 26, 2026, 1:44 a.m. ETFirst report

    Extreme Heat Warning Issued for Phoenix Area and Much of Arizona

    An Extreme Heat Warning has been issued for a large portion of Arizona, according to a report by FOX 10 Phoenix. The warning covers numerous areas including Buckeye, Avondale, Scottsdale, Paradise Valley, Gila Bend, Phoenix, Glendale, Queen Creek, Rio Verde, Fountain Hills, Mesa, Apache Junction, Gold Canyon, Sells, Kearny, Mammoth, Oracle, Ajo, Clifton, Safford, Tucson, Green Valley, Marana, Vail, Nogales, Sierra Vista, Benson, Eloy, Douglas, and Wilcox.

    The warning is in effect until 8:00 p.m. MST on August 29, 2026. The affected regions include the Northwest Valley, East Valley, Central Phoenix, Tucson Metro Area, and many other areas across the state, as reported by FOX 10 Phoenix.

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Revision history

  1. Version 126 Aug 2026, 05:52current

    First published.

  2. Version 126 Aug 2026, 05:44current

    First published.

  3. Version 126 Aug 2026, 05:50current

    First published.

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