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

LOS ANGELES (KABC) -- After a short period of relief from the heat, another heat wave is in the forecast for Southern California this week.

By Wednesday, high pressure is expected to strengthen, building temperatures through the second half of next week. Some areas will see triple-digit heat for several days. The high pressure is also expected to bring the return of monsoonal moisture, meaning showers and thunderstorms for our mountain communities.

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.

Los Angeles and Orange counties can expect clouds in the morning, followed by afternoon sunshine on Monday, with a high of 85 degrees and a low of 66. Temperatures will warm to the upper-80s by mid-week.

The valleys and Inland Empire will see sunny skies and gusty winds on Monday, with a high of 95 degrees and a low of 67. As high pressure moves by mid-week, temperatures will return to the upper-90s and triple digits.

Beach communities can expect clouds in the morning, followed by afternoon sunshine on Monday, with a high of 77 degrees and a low of 69. Highs in the upper-70s are on tap all week.

Mountain communities on Monday will see a 10% chance of thunderstorms, along with a high of 80 degrees and a low of 51. Rain chances are expected to return on Thursday and linger through the weekend.

Desert areas can expect a sunny and hot day on Monday, with a high of 97 degrees and a low of 75. Palm Springs is expected to reach 108 degrees.

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