Big warmup moving into SoCal Sunday. Here's how hot it will get

LOS ANGELES (KABC) -- Southern California will see a big warmup Sunday which will bring summer-like conditions to the region.

A ridge of high pressure is expected to move in between Sunday and Monday. It will be noticeable starting on Sunday when temperatures start pushing 80.

The National Weather Service says Monday will be the hottest day of the warming trend when the valleys and Inland Empire will be in the 90s.

Cooler conditions arrive mid-week when temperatures could drop by more than 10 degrees. Breezy conditions are also on their way for mid-week.

But first, Los Angeles and Orange counties on Sunday will see a high of 77 and a low of 52. Monday is expected to be in the upper 80s.

The valleys and Inland Empire on Sunday will be sunny amid a high of 82 and a low of 52. There could be record-breaking highs on Monday when temperatures climb past 90.

Beaches on Sunday will be cool, with morning clouds and afternoon sunshine on tap. Expect a high of 66 and a low of 51.

Mountains will reach 61, dropping to about 29 overnight. Temperatures will climb to 67 on Monday.

Deserts will be sunny amid a high of 82 on Sunday. Monday will reach the 90s.

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7-Day Forecasts

Los Angeles / Orange County Weather Forecast

Valleys and Inland Empire

Beaches

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Deserts