What to Know
- A significant warm-up will last throughout the weekend without much relief during night-time hours.
- Triple-digit temperatures are expected, and Palm Springs could reach 120 degrees.
- An excessive heat watch will last from Saturday morning through Monday evening in the Coachella Valley and the San Gorgonio Pass near Banning.
Widespread heat warnings and watches will be in effect this weekend when many Southern California communities will see temperatures well into the triple digits.
Had enough of the heat? Click here for a list of stay-cool strategies.
Temperatures ramped Friday, reaching the low 100s -- 6 to 8 degrees above normal -- in the San Fernando and Antelope valleys by the weekend because of high pressure. It's only going to get warmer Saturday and Sunday.
Overnight temperatures won't offer much relief.
Some of Los Angeles County's cooling centers will be open this weekend with health safety protocols due to the pandemic.
The warmest LA County location over the weekend will be the Antelope Valley, where temperatures will sizzle at 100 to 107 degrees.
A strong system of high pressure is building over Arizona and New Mexico, spurring sweltering heat in most of Southern California through Monday.
That's potentially dangerous heat, so residents are encouraged to drink water, limit outdoor activity if possible ad exercise during the morning or evening hours.
A heat advisory will be in effect Saturday morning through Sunday evening for the San Fernando, San Gabriel and Santa Clarita valleys and the San Gabriel and Santa Monica mountains.
In Riverside County, triple-digit heat is expected across a widespread area through Sunday. Highs in the Coachella Valley could soar to 119 degrees on Sunday, while the mercury in the Riverside area could reach 106.
An excessive heat warning will be in effect, starting Saturday morning and lasting through the weekend, for the Coachella Valley and the San Gorgonio Pass near Banning. A heat advisory will be in effect elsewhere.
At noon Saturday, the temperature in Palm Springs, Blythe and Thermal was recorded at 109 degrees, while west of the mountains in Riverside the mercury was at 97.
On Sunday, Thermal is expected to reach 118, and Palm Springs 117, and both temperatures would break records in their respective cities for the year. Palm Springs hit 115 on June 3 and again on July 5, and Thermal topped out at 115, too, also on June 3.
Sunday's temperatures are expected to be a degree or two hotter.
Click here for a list of cooling centers of Riverside County.
Temperatures are expected to cool slightly on Monday and keep dropping gradually through Wednesday.