Grand Canyon Village, Arizona – Extreme heat continues to grip the lower elevations of Grand Canyon National Park, with temperatures soaring to 115°F at Phantom Ranch and 106°F at Havasupai Gardens, putting visitors at risk for heat-related illnesses through 7 p.m. Wednesday.
According to the National Weather Service in Flagstaff, this Extreme Heat Warning covers all areas below 4,000 feet, including Supai, Grand Canyon Village, and North Rim. The advisory remains in effect until 7 p.m. MST Wednesday, July 16, as daytime highs push well into dangerous territory for outdoor activity.
Day hikers on the Bright Angel Trail are urged to descend no more than 1.5 miles from the upper trailhead. Between 10 a.m. and 4 p.m., physical activity is strongly discouraged; hikers should seek shade at Havasupai Gardens or campgrounds, and carry essentials such as wide-brimmed hats, sunscreen, salty snacks, and plenty of water with electrolytes. Emergency responders remind all visitors to double calorie intake to maintain energy and to watch for signs of heat exhaustion.
Park officials stress that these extreme temperatures are among the highest of the year and can become life-threatening without adequate cooling or hydration.
The heat warning will remain in effect until Wednesday evening, and additional advisories may follow if dangerous conditions persist.
