U.S. West braces for more heat after hottest June

Western states are bracing for more scorching weather this weekend after the hottest month of June on record in the U.S. killed scores of people, strained electric grids and depleted reservoirs.

“It feels like I'm walking into an oven when I walk outside!”

The National Weather Service has issued an excessive heat warning for much of the West through Monday evening, predicting "dangerously hot conditions".

Temperatures are expected to soar above 100 degrees in multiple states including California, Oregon, Utah and Arizona.

"The heatwave won't go away."

Officials say the extended heatwave, which coincides with a record-setting drought, has already killed at least 116 people in Oregon alone.

According to a study by a group of climate scientists, the extremes in the Pacific Northwest would have been "virtually impossible" without human-caused climate change.

Eight states recorded their hottest June on record, according to the National Oceanic and Atmospheric Administration, and another six states logged their second hottest June.