Weather
Los Angeles, CA Weather Alert: 80% Rain, Unhealthy Air Nov 12-16
Los Angeles, CA – Sunshine and temperatures near 81 degrees may make Thursday feel like summer across Los Angeles. However, harmful fine particle pollution is creating health concerns before a Pacific
By Nora Whitfield · 2026-11-12T12:05:41.435Z
Los Angeles, CA – Sunshine and temperatures near 81 degrees may make Thursday feel like summer across Los Angeles. However, harmful fine particle pollution is creating health concerns before a Pacific weather system brings an 80% chance of rain Friday.
According to the South Coast Air Quality Management District, an Air Quality Alert remains in effect until 11:59 p.m. Thursday, November 12, because of harmful fine particle pollution.
The alert affects portions of Los Angeles County, including Downtown Los Angeles, East Los Angeles, Vernon, Maywood, Bell Gardens, Hawthorne, Inglewood and Huntington Park.
Nearby communities, including Long Beach, Santa Monica, Beverly Hills and Norwalk, are also within the broader alert area.
Pollution concentrations can change depending on local weather conditions and emissions.
Air Quality Concerns Before Friday's Rain Fine particles can travel deep into the lungs, potentially aggravating asthma, bronchitis and other respiratory conditions.
People with heart or lung disease, older adults, children and pregnant individuals face increased health risks.
Residents should check current Air Quality Index readings before exercising outdoors.
When air quality reaches unhealthy levels, limiting prolonged outdoor activity can reduce exposure.
Keeping windows closed and using properly maintained air purifiers may also help reduce indoor particle pollution.
Meanwhile, Los Angeles should reach 81 degrees Thursday under sunny skies, with light southwest winds developing during the afternoon.
That warmth will give way to a noticeably different weather pattern.
Friday Brings 80% Rain Chance and Cooler Temperatures The National Weather Service expects rain to develop after 10 p.m. Thursday, with an 80% precipitation chance through the night.
Friday brings another 80% chance of rain, mainly before 10 a.m.
Temperatures will reach approximately 74 degrees, a seven degree drop from Thursday's projected high.
The local forecast calls for less than one tenth of an inch of new precipitation during the day Friday.
However, a separate Pacific storm system is expected to bring locally heavy coastal rainfall to parts of Southern California.
The Weather Prediction Center is monitoring that developing system as it moves toward the region.
Drivers should prepare for slick pavement, especially where accumulated roadway oils mix with the first rainfall.
Weekend Improvement Before More Rain Monday Saturday offers improving conditions after a 30% chance of rain before 10 a.m.
Temperatures should reach 70 degrees, with partly sunny skies developing.
Sunday looks more favorable for outdoor activities, with mostly sunny conditions and a high near 71 degrees.
However, another opportunity for rain arrives Sunday night, followed by rain likely Monday.
Residents planning weekend travel, outdoor gatherings or yard work should monitor changing conditions.
Los Angeles Five Day Weather Outlook: Nov. 12 16 Thursday, Nov. 12: Sunny and warm, high 81°F. Rain chance increases to 80% after 10 p.m., low 59°F. Friday, Nov. 13: Rain mainly before 10 a.m., with an 80% precipitation chance. High 74°F. Friday night brings another 80% rain chance, low 57°F. Saturday, Nov. 14: A 30% chance of morning rain before 10 a.m. Becoming partly sunny, high 70°F. Saturday night low 55°F. Sunday, Nov. 15: Mostly sunny, high 71°F. Chance of rain after 4 a.m. Monday, with a Sunday night low near 55°F. Monday, Nov. 16: Rain likely, mainly after 10 a.m. Mostly cloudy, high 69°F. Rain remains likely Monday evening, low 51°F. Looking farther ahead, Tuesday brings mostly sunny skies and a high near 67 degrees. Wednesday carries another chance of rain.
As Thanksgiving approaches, additional Pacific weather systems remain possible, although the supplied outlook does not establish specific holiday storm impacts.
Are you noticing hazy skies around Los Angeles, or preparing for Friday's rain? Tell us what conditions look like in your neighborhood.