Persistent Heat Wave Affects U.S. Southwest and California, Peaks in Pacific Northwest

A significant heat wave is ongoing across the U.S. Desert Southwest and California's Central Valley, with temperatures expected to reach well over 100 degrees Fahrenheit. Concurrently, the Pacific Northwest is bracing for the peak of its own heat wave today and Monday, with record-high temperatures in the 80s and 90s before a cooling trend begins mid-week.