Grand Canyon Village, Arizona – Hikers and visitors in Grand Canyon National Park are facing some of the hottest temperatures of the year, with a prolonged extreme heat warning below 4,000 feet through 7 p.m. Wednesday. Roads, trails, and campgrounds at lower elevations—especially around Phantom Ranch and Supai—are experiencing dangerous highs, with the National Weather Service reporting temperatures from 106°F at Havasupai Gardens to a scorching 115°F at Phantom Ranch.
According to the National Weather Service in Flagstaff, the warning remains in effect for the lower elevations of the Grand Canyon, including the North Rim area, Supai, and Grand Canyon Village. Hikers are urged to avoid descending more than 1.5 miles on the Bright Angel Trail. Between 10 a.m. and 4 p.m., anyone venturing into the canyon should seek shelter at Havasupai Gardens or Bright Angel campgrounds. Prolonged exposure can quickly lead to heat exhaustion or heat stroke.
Travelers, hikers, and park staff should limit outdoor activity, stay hydrated, and use cooling measures such as wide-brimmed hats and electrolyte-rich drinks. Consider doubling calorie intake and always carry salty snacks. Park officials recommend postponing strenuous hikes and checking on vulnerable family members and pets.
The extreme heat is expected to persist until at least Wednesday evening, with additional advisories possible if conditions worsen. Anyone planning to visit the canyon should monitor local alerts and plan to finish all outdoor activities by mid-morning.
