California Severe Extreme Heat Warning | Effective 10/04/2026 11:04

Headline: 
Extreme Heat Warning issued October 4 at 11:04AM PDT until October 8 at 8:00PM PDT by NWS Los Angeles/Oxnard CA
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
October 4, 2026 - 11:04am
Expires: 
October 5, 2026 - 5:00pm
Description: 
* WHAT...Dangerously hot conditions with temperatures reaching 90 to 100 at the coast and 106 in the valleys. * WHERE...Coast and valleys of Los Angeles and Ventura Counties. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.
Area Description: 
Catalina and Santa Barbara Islands; Santa Clarita Valley; Ventura County Beaches; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; 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; Southeastern Ventura County Valleys; Santa Susana Mountains; Los Angeles County San Gabriel Valley
Forcast Office: 
NWS Los Angeles/Oxnard CA
Sender: 
w-nws.webmaster@noaa.gov