Another heat wave settled into Southern California Sunday, with temperatures expected to linger in the 90s and low triple digits in some areas through Wednesday.
An excessive heat warning was issued from 10 a.m. Monday until 8 p.m. Wednesday for the valley areas, according to the National Weather Service, and from 10 a.m. Monday until 8 p.m. Tuesday for downtown Los Angeles and Beverly Hills, Compton, Culver City, Downey, Hollywood, Lakewood and Norwalk.
A heat advisory was in effect from 10 a.m. Monday until 8 p.m. Tuesday in the Los Angeles County beach areas.
“Temperatures will be hottest on Monday and Tuesday when highs push into the 90s to around 105 degrees across the interior coastal plain, valleys, mountains, and deserts,” according to the NWS. “The coastal and inland valleys of Los Angeles County and nearby Ventura County will be especially warm with excessive heat conditions likely on those days.”
Sunday’s high in downtown Los Angeles was 89 degrees, and was expected to increase to 93, 95 and 92 over the following three days, the NWS said.
Van Nuys reached 99 on Sunday, with highs of 101 expected Monday and Tuesday and 100 expected Wednesday.
It was 95 in Pasadena on Sunday, with highs of 98, 99 and 97 forecast for the next three days.
Triple-digit highs were also forecast for Lancaster, Santa Clarita and Woodland Hills on Monday and Tuesday.
Isolated thunderstorms were predicted until sunset Sunday for the eastern San Gabriel Mountains and eastern Antelope Valley.
The NWS also warned of elevated fire conditions through Wednesday due to the hot and dry weather, with the “potential for large vertical plume growth.”
In Orange County, forecasters also issued excessive heat watches that will be in place Monday morning through Wednesday evening for inland and coastal areas. According to the NWS, temperatures could reach triple-digits inland in cities such as Santa Ana, Anaheim, Irvine and Fullerton, while coastal areas could reach into the 90s.
“Be prepared to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors,” the NWS advised. “Young children and pets should never be left unattended in vehicles under any circumstances.”
Overnight lows are also forecast to be higher than normal for the next few days, lingering in the low-to-mid 70s in the inland areas.
Daytime temperatures are expected to drop a few degrees Thursday before settling back into the 80s on Friday.