Grand Canyon Village, AZ – Daytime highs near the Colorado River could soar to 115°F through Sunday, prompting an Extreme Heat Warning for lower Grand Canyon elevations below 4,000 feet.
According to the National Weather Service in Flagstaff, the warning remains in effect until 7 p.m. Sunday, covering areas from Grand Canyon Village to Phantom Ranch and Supai. Forecasters warn of severe heat-related illness risk for anyone outdoors, especially hikers, as the mercury reaches the highest levels of the year.
Hikers on Bright Angel Trail are urged not to descend more than 1.5 miles from the rim, with all strenuous activity discouraged between 10 a.m. and 4 p.m. Campers at Havasupai Gardens and Bright Angel Campground should seek shade and stay hydrated. Essential safety gear includes a wide-brimmed hat, sunscreen, salty snacks, and plenty of water with electrolytes. Doubling calorie intake can help maintain energy during extreme heat.
This weekend’s extreme temperatures could cause dehydration, heat stroke, and medical emergencies. Emergency services may be delayed due to the remote canyon location. Visitors should avoid non-essential travel into lower elevations until temperatures drop Sunday evening. Additional heat advisories could be issued if conditions persist.
Warnings remain in effect through 7 p.m. Sunday. Check with park officials for updated trail guidance.
