Santa Ana Setup Bringing the Heat into Southern California

news image
Top Stories
29 Oct 2025 8:45 PM

LOS ANGELES - On Tuesday, temperatures in LA rose to record territory with a temperature of 97 degrees, which beats out the old record for October 28th of 94 in 1931. What's causing this heat? The Santa Ana winds have returned. In addition to LA, Oxnard, and Idyllwild also broke record highs on Tuesday afternoon.

Santa Ana Winds

Whenever we have high-pressure systems out in the West Coast, the possibility of a Santa Ana wind setup becomes likely. The NWS in Los Angeles warns critical fire danger is likely on Wednesday because of low humidity, gusty winds, and high heat.


During this phenomenon, winds head westward due to the high pressure's clockwise motion. These winds will pass over the dry, desert region of the southwest and head west through the mountain passages in Southern California. During their descent, the air compresses, causing their temperatures to rise.

These winds are expected to bring well above-average temperatures for Southern California. In some spots, we can expect temperatures that are close to 15 degrees above average. This puts several cities in the high 80s in late October!

As a result, the National Weather Service has issued multiple heat advisories and red flag warnings across LA county and the surrounding areas.

This heat will also come with the potential to break some additional records. Some of these forecast temperatures have Long Beach feeling like summer when most people are sharpening their skis to hit the slopes!

Stay tuned to WeatherNation where we'll keep tracking these temperatures in Southern Cali throughout this week.

All Weather News
More
Record Heat Again on Saturday

Record Heat Again on Saturday

Although a cold front has worked it's way int

16 Nov 2025 3:20 AM
Weekend System Brings Snow, Ice, & Storms to the Northeast

Weekend System Brings Snow, Ice, & Storms to the Northeast

Low pressure will track through the Northeast

16 Nov 2025 3:20 AM
Pacific Low Bringing Active Weather Across California

Pacific Low Bringing Active Weather Across California

Intense rain and wind began impacting Califor

16 Nov 2025 3:15 AM
Active Pattern Developing Across the Central U.S. Next Week

Active Pattern Developing Across the Central U.S. Next Week

The next few days are going to be really nice

16 Nov 2025 3:15 AM
Solar Storm Visible as far south as The South - Another Round Arrives Tonight

Solar Storm Visible as far south as The South - Another Round Arrives Tonight

The Northern Lights (Auroras—commonly seen ne

13 Nov 2025 2:45 AM
Last Morning of Record Cold - Digging Out the Rest of the Week

Last Morning of Record Cold - Digging Out the Rest of the Week

The season’s first Arctic blast surged into t

12 Nov 2025 7:30 PM
Lake Effect Snow Wraps Up Today

Lake Effect Snow Wraps Up Today

The lake effect snow season has arrived, with

11 Nov 2025 5:05 PM