Extreme Heat Warning Extended Across Portions of Arizona
An Extreme Heat Warning covering multiple regions in Arizona has been extended through 8:00 p.m. on August 21, 2026.
3 reports on this incident · first at Aug 18, 2026, 7:57 p.m. ET
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 18, 2026, 8:12 p.m. ET — checked 2h ago.
Earlier reports
Aug 18, 2026, 8:25 p.m. ET
Extreme Heat Warning Issued Across Portions of Arizona
An Extreme Heat Warning has been issued across several regions in Arizona, raising the alert level to a warning, according to reporting by fox10phoenix.com. The warning is scheduled to remain in effect until August 21, 2026, at 8:00 p.m.
According to fox10phoenix.com, the affected areas include Central Phoenix, Tucson Metro Area, East Valley, Northwest Valley, Buckeye/Avondale, Scottsdale/Paradise Valley, Deer Valley, Tonopah Desert, 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, Kofa, Southeast Valley/Queen Creek, Fountain Hills/East Mesa, San Carlos, Northwest Pinal County, Apache Junction/Gold Canyon, Parker Valley, Tohono O'odham Nation, Southeast Pinal County, Western Pima County, Upper Gila River and Aravaipa Valleys, South Central Pinal County, and Gila River Valley.
Cities and locations subject to the warning include Tucson, Sells, Kearny, Mammoth, Oracle, Ajo, Organ Pipe Cactus National Monument, Clifton, Safford, Green Valley, Marana, Vail, Eloy, and Picacho Peak State Park, fox10phoenix.com reported.
Aug 18, 2026, 7:57 p.m. ETFirst report
Extreme Heat Warning Issued Across Portions of Arizona
An Extreme Heat Warning has been issued across broad areas of Arizona, according to reporting from FOX 10 Phoenix. The situation is developing.
FOX 10 Phoenix reported that the warning covers the Tucson Metro Area, Central Phoenix, East Valley, Northwest Valley, Scottsdale/Paradise Valley, South Mountain/Ahwatukee, Buckeye/Avondale, Tonopah Desert, Deer Valley, Fountain Hills/East Mesa, North Phoenix/Glendale, Southeast Valley/Queen Creek, Cave Creek/New River, Aguila Valley, Gila Bend, Sonoran Desert National Monument, Kofa, Yuma County, Southeast Yuma County, Central La Paz, Parker Valley, West Pinal County, South Central Pinal County, Southeast Pinal County, Northwest Pinal County, Apache Junction/Gold Canyon, Tohono O'odham Nation, Western Pima County, Upper Gila River and Aravaipa Valleys, Gila River Valley, and San Carlos. Affected cities and landmarks include Sells, Kearny, Mammoth, Oracle, Ajo, Organ Pipe Cactus National Monument, Clifton, Safford, Tucson, Green Valley, Marana, Vail, Eloy, and Picacho Peak State Park.
According to FOX 10 Phoenix, the warning expires at 8:00 PM on August 21, 2026.
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Revision history
- Version 119 Aug 2026, 00:56current
First published.
- Version 118 Aug 2026, 23:57current
First published.
- Version 119 Aug 2026, 00:25current
First published.
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