Arizona Severe Extreme Heat Warning | Effective 06/22/2026 12:15

Headline: 
Extreme Heat Warning issued June 22 at 12:15PM MST until June 24 at 8:00PM MST by NWS Tucson AZ
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
June 22, 2026 - 12:15pm
Expires: 
June 23, 2026 - 5:00am
Description: 
* WHAT...Dangerously hot conditions with afternoon temperatures of 107 to 111 degrees. Localized Major Heat Risk. * WHERE...Southeast Pinal County, Tucson Metro Area, Upper Gila River Valley, and Upper San Pedro River Valley (mainly north of Benson). * WHEN...From 11 AM Tuesday to 8 PM MST Wednesday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
Instruction: 
To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. Take extra precautions if you work or spend time outside. When possible, reschedule strenuous activities to early morning or evening. Know the signs and symptoms of heat exhaustion and heat stroke. Wear lightweight and loose fitting clothing when possible and drink plenty of water.
Area Description: 
Tucson Metro Area including Tucson/Green Valley/Marana/Vail; Southeast Pinal County including Kearny/Mammoth/Oracle; Upper San Pedro River Valley including Sierra Vista/Benson; Upper Gila River and Aravaipa Valleys including Clifton/Safford
Forcast Office: 
NWS Tucson AZ