Arizona Severe Extreme Heat Watch | Effective 07/04/2026 11:28

Headline: 
Extreme Heat Watch issued July 4 at 11:28AM MST until July 9 at 8:00PM MST by NWS Phoenix AZ
Event: 
Extreme Heat Watch
Urgency: 
Future
Effective: 
July 4, 2026 - 11:28am
Expires: 
July 5, 2026 - 3:00am
Description: 
* WHAT...Dangerously hot conditions possible. Afternoon temperatures 111 to 115. Major Heat Risk. * WHERE...Buckeye/Avondale, Central Phoenix, Deer Valley, East Valley, North Phoenix/Glendale, Northwest Valley, Scottsdale/Paradise Valley, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek. * WHEN...From Tuesday morning through Thursday evening. * 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 Watch means that a period of very hot temperatures, even by local standards, may 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: 
Northwest Valley; Buckeye/Avondale; Deer Valley; Central Phoenix; North Phoenix/Glendale; Scottsdale/Paradise Valley; East Valley; South Mountain/Ahwatukee; Southeast Valley/Queen Creek
Forcast Office: 
NWS Phoenix AZ