Another round of extreme heat moving into SoCal. Here's how hot it will get

LOS ANGELES (KABC) -- Another round of extreme heat is on the way to Southern California.

For the past couple of days, a slight on-shore breeze dropped temperatures a few degrees. Now, another area of high pressure is moving into the region.

ABC7 has issued a weather change alert for Friday, when another extreme heat wave will begin building, bringing scorching temperatures back to SoCal over the weekend.

Most of SoCal will be under either an extreme heat warning or a heat advisory beginning Friday at 10 a.m. The advisory/warning expires on Sunday at 8 p.m.

A high surf advisory begins Thursday at 6 a.m. for much of the coast, with four-to-eight-foot waves possible. It expires Saturday at 5 p.m. A coastal flood advisory is also in place from Wednesday at 5 p.m. through Saturday at 3 a.m.

Los Angeles and Orange counties on Thursday will see sunshine with a high of 91 degrees and a low of 67. Temperatures are expected to climb back to the mid-to-upper 90s by Friday and Saturday.

In the valleys and Inland Empire, temperatures on Thursday are expected to reach a high of 100 degrees and a low of 64. Triple-digit temperatures are expected to stick around through the weekend.

Beach communities can expect morning clouds followed by afternoon sunshine on Thursday, with a high of 78 degrees and a low of 65. Highs will return to the low-80s by Friday and through the weekend.

Mountain communities on Thursday will see sunshine with a high of 86 degrees and a low of 51. Temperatures are expected to climb back to the low-90s by Saturday.

Desert areas will remain hot on Thursday, with a high of 103 degrees and a low of 67. Palm Springs is expected to reach 113 degrees. ABC7 has issued a severe weather alert for Thursday, when highs are expected to begin climbing beyond the already dangerous levels.

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7-Day Forecasts

Los Angeles / Orange County Weather Forecast

Valleys and Inland Empire

Beaches

Mountains

Deserts