Triple-digit temperatures in store for parts of Southern California this week

Triple-digit temperatures in store for parts of Southern California this week
A woman uses a broken umbrella to shield herself from the sun in Los Angeles earlier this year. (Irfan Khan / Los Angeles Times)

It’s time to crank up those fans and air conditioners because the next few days are going to be hot. 

The first extended heat wave of the season has been forecast for inland regions of the Southland for the rest of the week, with triple-digit temperatures on tap for the San Fernando and Antelope valleys, according to the National Weather Service.

A high-pressure system moving over Southern California from the Pacific Ocean is bringing the heat wave, said David Sweet, a meteorologist with the National Weather Service in Oxnard.

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“This high-pressure area is like a big dome of warm air … that’s helping to heat things up,” Sweet said.

The weather system will raise the fire danger across inland regions and increase the risk of heat-related medical problems, according to the weather service.

Temperatures in inland areas of Los Angeles County will be well above normal by Friday and will remain high through Saturday. Low clouds and thick fog will keep temperatures seasonally mild at the beaches, Sweet said. 

“The farther inland you go, the better chance you have for this much warmer weather,” he said. 

Highs in downtown Los Angeles are expected to be 80 to 82 degrees, or about five degrees above normal, Sweet said.

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In Burbank, highs could hit the mid-80s to lower 90s by Thursday, which is about 10 to 15 degrees above normal, Sweet said.

On Friday, it will be even hotter. The San Fernando Valley could see highs ranging from 92 to 100 degrees, up to 20 degrees above normal, he said. 

In the Antelope Valley, high temperatures are forecast at 96 to 103 degrees on Thursday and 97 to 104 degrees on Friday, Sweet said. The normal is around 87 degrees.

“If you like heat, the Antelope Valley is the place to go,” Sweet said.

According to the weather service, interior valleys in Ventura, San Luis Obispo and Santa Barbara counties could hit 95 to 105 degrees, and lower-elevation mountain areas also could be hotter than normal. 

Temperatures will rise further south and east as well, with highs 10 to 20 degrees above average in inland regions on Friday and Saturday. 

The Coachella Valley could see temperatures above 110 degrees. Temperatures will be broiling in the upper deserts and Inland Empire as well, prompting an anticipated excessive heat watch Friday and Saturday, according to the National Weather Service in San Diego

Palm Springs, where the average high is 98 degrees this time of year, could hit 114 degrees on Friday, forecasters said. Riverside could reach 102 on Saturday and Sunday; the average high is 82 degrees there. 

An upper-level low pressure system is expected to bring significant cooling to Southern California on Sunday and Monday. 

Forecasters are suggesting residents avoid heavy outdoor work during the day, drink plenty of water and make sure their cooling systems are functioning.


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