3 hikers die of suspected heat-related illness during rising temperatures at Grand Canyon (opens original article in a new tab)

Three hikers died from apparent heat-related illnesses in the Grand Canyon over two days, with temperatures exceeding 109°F (43°C) in the shade during midday hours.

• Three hikers died from suspected heat-related illnesses in the Grand Canyon.
• Temperatures in the inner canyon can exceed 109°F (43°C) in the shade during midday.
• The National Park Service warned hikers to avoid trails between 10 a.m. and 4 p.m. due to heat risks.