Extreme Heat Warning

Locations Affected

Gilbert, AZ ∙ Glendale, AZ ∙ Mesa, AZ ∙ Chandler, AZ ∙ Scottsdale, AZ ∙ Phoenix, AZ ∙ Peoria, AZ ∙ Tempe, AZ ∙ Surprise, AZ ∙ Yuma, AZ

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Phoenix AZ Issued by National Weather Service Tucson AZ 107 PM MST Thu Mar 19 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST SUNDAY... * WHAT...Dangerously hot conditions. Afternoon temperatures 95 to 106 expected. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke. * WHERE...Apache Junction/Gold Canyon, Cave Creek/New River, Dripping Springs, Fountain Hills/East Mesa, New River Mesa, Rio Verde/Salt River, and Superior Counties. * WHEN...Until 8 PM MST Sunday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Afternoon temperatures 95 to 107 expected. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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.

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