Tens of millions of people across the western U.S. continue to endure sweltering, triple-digit temperatures as a dangerous heatwave grips the region during one of the hottest starts to summer on record.
The heatwave has caused significant discomfort across the Northwest, as well as in California, Nevada, and Arizona, and this trend is expected to persist for at least the next several days.
Excessive Heat Warnings have been issued across western Washington state, northern Idaho, and western Oregon.
Further south, Central and Southern California and the Las Vegas area in southern Nevada are also under Excessive Heat Warnings.
In western Washington, the Excessive Heat Warnings will remain in effect through at least Monday night as temperatures soar to between 100 and 110 degrees. These scorching temperatures will be felt throughout the region.
“Dangerously hot conditions are expected,” said the National Weather Service office in Las Vegas. “Temperatures in the Colorado River Valley and around Lake Mead, Lake Mohave, and Lake Havasu will range from 112 to 118.”
The intense heat will increase the risk of heat-related illnesses like heatstroke and heat exhaustion, and those sensitive to heat should take precautions to stay safe and healthy.
Seattle is not among the cities facing a heat alert, with high temperatures expected to stay in the lower 80s on Sunday, falling into the 70s on Monday and Tuesday.
In contrast, Boise, Idaho, will be extremely hot, with high temperatures possibly reaching 107 degrees on Sunday and staying above 100 degrees for the next few days.
Sacramento, California, will also experience a period of triple-digit temperatures, while Los Angeles should remain in the upper 70s.
Las Vegas has a forecast high temperature of 112 degrees on Sunday, remaining around 100 degrees on Monday and Tuesday.
Cities across the West may approach or break record-high temperatures on Sunday and Monday.
Las Vegas is expected to come close to its record of 113 degrees set on this date last year.
Spokane, Washington, could break its old record of 103 degrees set in 1905, with a forecast high temperature of 107 degrees on Sunday.