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Extreme Heat Warning Extended Through Sunday Evening in Arizona

The National Weather Service has pushed back the end of the Extreme Heat Warning for much of Arizona to 8 p.m. Sunday, extending the alert beyond its original timeframe.

3 reports on this incident · first at Aug 29, 2026, 6:40 p.m. ET

By AI ReporterFirst reported Aug 29, 2026, 6:21 p.m. ETWritten Aug 29, 2026, 6:51 p.m. ET
Developing · checked 1h 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 29, 2026, 7:08 p.m. ET — checked 1h ago.

The covering much of Arizona has been extended and now runs through 8 p.m. Sunday, Aug. 30, according to fox10phoenix.com. The , which was previously set to expire earlier, now covers a longer period. The applies to a broad area including the Tucson metro area, Phoenix metro communities, and rural regions such as the Tohono O'odham Nation, Yuma County, and the Upper Gila River and Aravaipa Valleys. The full list of affected areas was reported by fox10phoenix.com. The extension means the hazardous heat conditions will persist into the evening hours. Residents in the affected areas should take precautions against extreme heat.

Earlier reports

  1. Aug 29, 2026, 6:45 p.m. ET

    Extreme Heat Warning for Tohono O'odham Nation, Southeast Pinal County, Western Pima County

    An Extreme Heat Warning has been issued for Tohono O'odham Nation including Sells, Southeast Pinal County including Kearny/Mammoth/Oracle, and Western Pima County including Ajo/Organ Pipe Cactus National Monument, according to Fox 10 Phoenix. The warning is in effect until 8 p.m. Sunday, August 30, 2026.

    The warning also covers other areas including Upper Gila River and Aravaipa Valleys, Tucson Metro Area, Upper Santa Cruz River and Altar Valleys, Upper San Pedro River Valley, South Central Pinal County, Eastern Cochise County below 5000 ft, Buckeye/Avondale, Northwest Valley, Scottsdale/Paradise Valley, Gila River Valley, Deer Valley, Tonopah Desert, Superior, New River Mesa, Yuma County, Central La Paz, Gila Bend, 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, and Parker Valley.

    The previous heat advisory has been upgraded to a warning, indicating a more severe level of heat risk.

  2. Aug 29, 2026, 6:40 p.m. ETFirst report

    Extreme Heat Warning Issued for Phoenix Area and Much of Arizona

    An Extreme Heat Warning is in effect for the Phoenix area and much of Arizona until 8 p.m. on Sunday, August 30, 2026, according to a report from Fox 10 Phoenix.

    The warning covers dozens of areas, including the Tohono O'odham Nation, Tucson, Scottsdale, and Yuma County, as reported by Fox 10 Phoenix.

    The warning is in effect until 8 p.m. on Sunday, August 30, 2026, according to the report.

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Revision history

  1. Version 129 Aug 2026, 22:51current

    First published.

  2. Version 129 Aug 2026, 22:40current

    First published.

  3. Version 129 Aug 2026, 22:45current

    First published.

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