Arizona Severe Extreme Heat Warning | Effective 07/05/2026 11:30

Headline: 
Extreme Heat Warning issued July 5 at 11:30AM MST until July 9 at 8:00PM MST by NWS Phoenix AZ
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
July 5, 2026 - 11:30am
Expires: 
July 6, 2026 - 8:30am
Description: 
* WHAT...Dangerously hot conditions possible. Afternoon temperatures 109 to 115. Major Heat Risk. * WHERE...Portions of south-central Arizona. * WHEN...From 10 AM Tuesday to 8 PM MST Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * ADDITIONAL DETAILS...In Maricopa County, call 2-1-1 to find a free cooling center, transportation, water, and more. http://www.maricopa.gov/heat
Instruction: 
An Extreme Heat Warning means that a period of very hot temperatures, even by local standards, will occur. Actions should be taken to lessen the impact of the extreme heat. 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. 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. Public cooling shelters are available in some areas. Consult county officials for more details.
Area Description: 
Aguila Valley; Tonopah Desert; Gila Bend; Cave Creek/New River; New River Mesa; Rio Verde/Salt River; Fountain Hills/East Mesa; Northwest Pinal County; West Pinal County; Apache Junction/Gold Canyon; Sonoran Desert Natl Monument; San Carlos; Globe/Miami
Forcast Office: 
NWS Phoenix AZ