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Severe · Extreme Heat WarningActive alert

Extreme Heat Warning issued September 8 at 10:49AM PDT until September 10

Affecting Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Los Angeles County San Gabriel Valley

In effect until: Sep 9, 2026, 10:00 PM

Malibu Coast; Los Angeles County Beaches; Palos Verdes Hills; Los Angeles County Inland Coast including Downtown Los Angeles; Western Santa Monica Mountains Recreational Area; Eastern Santa Monica Mountains Recreational Area; Calabasas and Agoura Hills; Western San Fernando Valley; Eastern San Fernando Valley; Los Angeles County San Gabriel Valley

Likely impact; effects through 10:00 PM.

Stay in air conditioning if possible. Drink water regularly and check on elderly neighbors.

Read the original bulletin (official text)
* WHAT...Temperatures between 92 and 108 expected.

* WHERE...Calabasas and Agoura Hills, Eastern San Fernando Valley,
Eastern Santa Monica Mountains Recreational Area, Los Angeles
County Beaches, Los Angeles County Inland Coast including Downtown
Los Angeles, Los Angeles County San Gabriel Valley, Malibu Coast,
Palos Verdes Hills, Western San Fernando Valley, and Western Santa
Monica Mountains Recreational Area.

* WHEN...For the Heat Advisory, until 8 AM PDT Wednesday. For the
Extreme Heat Warning, from 8 AM Wednesday to 8 PM PDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events. Hot temperatures may cause heat illnesses.

* ADDITIONAL DETAILS...Humid conditions will add to heat discomfort.
Heat peaking on Wednesday for most areas.
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Alert data: U.S. National Weather Service / NOAA · Translation: WeatherTranslate™