Phoenix, Arizona – Temperatures across the Phoenix metro area are expected to spike into dangerous territory beginning Sunday morning, with highs potentially reaching 116°F and triggering a multi-day Extreme Heat Watch through Tuesday night.
According to the National Weather Service in Phoenix, this alert affects major parts of Maricopa County including Central Phoenix, Scottsdale, Glendale, Mesa, and Queen Creek. Afternoon highs from Sunday through Tuesday are forecast between 110°F and 116°F, carrying a “Major Heat Risk” classification. A separate watch has been issued for areas like Casa Grande, Gila Bend, and Apache Junction, where temperatures may top 115°F on Monday.
Residents are urged to limit time outdoors, especially during peak afternoon hours. Health officials recommend wearing light clothing, staying hydrated, and seeking air-conditioned environments. Outdoor workers should follow OSHA guidelines, including frequent shaded breaks and water access. Cooling centers and heat relief stations are available throughout the Valley; call 2-1-1 or visit maricopa.gov/heat for resources.
This event marks one of the most intense early summer heat waves for Arizona in recent years. Additional heat advisories may be issued if conditions intensify or expand.