Extreme Heat Warning

Locations Affected

Tucson, AZ ∙ Avra Valley, AZ ∙ Tucson Intl Airport, AZ ∙ Mescal, AZ ∙ Thatcher, AZ ∙ Maish Vaya, AZ ∙ Sierra Vista Southeast, AZ ∙ Safford Municipal Airport, AZ ∙ North Komelik, AZ ∙ Rillito, AZ

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service Tucson AZ 707 PM MST Thu Jun 19 2025 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST FRIDAY... * WHAT...Dangerously hot conditions Friday with temperatures up to 109 possible in the Tucson metropolitan area, Gila River Valley, and across western and central Pima County including the Tohono O'odham Nation. High temperatures elsewhere will be 100 to 106 degrees. * WHERE...Eastern Cochise County below 5000 feet, South Central Pinal County, Southeast Pinal County, Tohono O'odham Nation, Tucson Metro Area, Upper Gila River Valley, Upper San Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley, and Western Pima County. * WHEN...Until 9 PM MST Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. 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.

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