Hottest June on record in much of Southwest, and no end in sight


Story highlights

NEW: June is the hottest month on record for Las Vegas and Death Valley

NEW: Five people are treated for heat-related illnesses at Lake Mead

NEW: High temperatures are making things worse for firefighters

Excessive heat warnings will last through Independence Day in some areas

Are you getting hit by the extreme heat? Let us know how you’re coping on CNN iReport.

CNN —  

The Southwest heat wave made June the hottest month on record for Las Vegas, Death Valley, and Needles, California, the National Weather Service said Monday, which added that the high temperatures are not over yet.

Forecasters extended the excessive heat warning in place for much of California, Nevada, and parts of Arizona through 11 p.m. on Independence Day, warning of “dangerously hot temperatures.”

Monday saw new record temperatures across the region. Death Valley hit 127 degrees, breaking the old record for the day by two degrees, said Chris Stachelski, a meteorologist with the National Weather Service in Las Vegas.

Barstow, California, set a new daily record of 114, as did Bishop, California, where it reached 109.

The hottest temperatures Monday were near Las Vegas and surrounding Clark County, Stachelski said. Moapa, Nevada, just northeast of Vegas, reached a high of 120.

Five people were treated for heat-related illnesses over th