Mid-week warmup to bring triple-digit heat back to SoCal. Here's how hot it will get

LOS ANGELES (KABC) -- Another heat wave moves into Southern California this week, bringing an Extreme Heat Watch and triple-digit heat to many areas.

By Wednesday, high pressure is expected to strengthen, raising temperatures through the second half of next week. Some areas will see triple-digit heat for several days.

ABC7 has issued a Weather Change Alert for Wednesday, when the warm-up begins.

A High Surf Advisory is in effect for SoCal beaches, with waves between 5 and 8 feet possible in Los Angeles and Ventura counties. At Orange County beaches, waves up to 9 feet are possible. The advisory expires on Tuesday at 11 p.m.

An Extreme Heat Watch will begin on Wednesday at 8 p.m. for many areas in the Inland Empire and the western San Fernando Valley. The watch expires next Monday at 8 p.m.

Much of the rest of SoCal will be under a Heat Advisory beginning Wednesday at 10 a.m. through next Monday at 8 p.m.

Los Angeles and Orange counties can expect sunny and warm conditions on Tuesday, with a high of 88 degrees and a low of 68. Temperatures will warm to the low-90s by mid-week.

The valleys and Inland Empire will see sunny skies on Tuesday, with a high of 95 degrees and a low of 65. As high pressure moves in by mid-week, temperatures will return to the triple digits.

Beach communities can expect clouds in the morning, followed by afternoon sunshine on Tuesday, with a high of 78 degrees and a low of 68. When the warm-up arrives on Wednesday, humidity will roll in at the beaches.

Mountain communities on Tuesday will see a sunny day followed by clouds in the evening, with a high of 80 degrees and a low of 51. Highs will warm to the low-90s by the weekend -- near record-breaking temperatures.

Desert areas can expect a sunny and hot day on Tuesday, with a high of 100 degrees and a low of 71. Palm Springs is expected to reach 108 degrees.

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