A time-lapse video shows a fire cloud rolling over the Grand Canyon as a ‘megafire’ continues to rage on across northern ...

An excessive heat warning at the Grand Canyon National Park went into effect by park officials Friday. Here's how to stay safe in extreme conditions.

An excessive heat warning at the Grand Canyon National Park went into effect by park officials Friday. Here's how to stay safe in extreme conditions.

All three days will be sunny and hot, according to weather forecasts. Temperatures at Phantom Ranch can be nearly 30 degrees hotter than those outside the canyon, the NPS said.