LOS ANGELES—A building high pressure system will push temperatures upward beginning Friday, June 21, and continuing into early next week, giving some areas triple-digit heat for the weekend.
The National Weather Service issued a heat advisory that will be in effect from 10 a.m. Saturday through 8 p.m. Sunday for the Santa Clarita, San Fernando and San Gabriel valleys, where forecasters said temperatures could reach as high as 101 degrees.
