Extreme Heat Warning in Effect for Tucson Area Until Friday Evening
Extreme Heat Warning in Effect for Tucson Area Until Friday Evening
US · Published Aug 19, 2026
An Extreme Heat Warning has been issued for Tucson, Arizona, and surrounding areas, including South Central Pinal County, Southeast Pinal County, the Tohono O'odham Nation, the Tucson Metro Area, the Upper Gila River Valley, and Western Pima County.
The warning remains in effect until Friday at 8:00 PM MST.

Impact & Risks

The extreme heat poses a significant risk to public health, particularly for those working or spending extended periods outdoors. Vulnerable populations, such as the elderly, children, and individuals with pre-existing health conditions, are at heightened risk of heat exhaustion or heat stroke. Prolonged exposure to these conditions can lead to severe health complications, and heat stroke is considered a medical emergency. Residents in the affected areas are urged to take precautions to avoid heat-related illnesses.

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