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Southern California Weather: Summer-Like Temperatures Bring Warmth to Start Autumn

Southern California is experiencing a notable warm-up as an early autumn ridge of high pressure brings summer-like conditions to Los Angeles, Orange County, and surrounding inland regions, according to forecasts issued by KABC Television. Temperatures across the region…

Southern California Weather: Summer-Like Temperatures Bring Warmth to Start Autumn

Southern California is experiencing a notable warm-up as an early autumn ridge of high pressure brings summer-like conditions to Los Angeles, Orange County, and surrounding inland regions, according to forecasts issued by KABC Television. Temperatures across the region are running 8 to 10 degrees above average, though meteorologists note conditions will remain well below peak summer heat wave levels.

Los Angeles and Orange County Temperature Forecast

For Thursday, Los Angeles and Orange County residents can expect a high of 87 degrees and an overnight low of 65 degrees. Coastal areas will enjoy sunny skies with daytime highs reaching 79 degrees and lows dropping to 67 degrees. According to KABC weather data, a significant cool-down is expected to bring temperatures back down into the 80s starting Sunday.

Inland Valleys and Inland Empire Heat Conditions

Valleys and the Inland Empire face hotter conditions, with Thursday’s high projected at 92 degrees and a low of 62 degrees. Desert communities are experiencing the highest temperatures in the region, with Thursday daytime highs reaching 96 degrees and lows settling at 62 degrees. Palm Springs is forecasted to hit a peak of 101 degrees under sunny skies.

Southern California Weather: Summer-Like Temperatures Bring Warmth to Start Autumn

Mountain Weather and Pacific Ocean Hurricane Monitoring

Mountain areas remain cooler, offering a high of 74 degrees and a low of 48 degrees on Thursday with partially sunny skies and a 10 percent chance of rain, followed by a slight chance of llovizna early next week. Meanwhile, forecasters are tracking an active hurricane in the Pacific Ocean that could generate strong coastal surf along the Southern California shoreline.

Upcoming Weather Transition

The current warm spell is temporary. Temperatures across the valleys and coastal zones will decline into the 80s from Sunday through Monday before another warming trend develops between Tuesday and Wednesday.

About the author: Marcus Liu - Business Editor

MBA and ex‑B bureau chief specializing in global finance and fintech. Marcus speaks Mandarin, Japanese, and English, and has interviewed CEOs from the Fortune 50 to Y‑Combinator unicorns. Marcus Liu delivers sharp analysis on markets, startups, and corporate strategy for investors and entrepreneurs alike.