Heat Advisory issued September 7 at 11:55AM PDT until September 10 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

Cuyama Valley; Santa Clarita Valley; San Luis Obispo County Beaches; San Luis Obispo County Inland Central Coast; Santa Lucia Mountains; Southern Salinas Valley; San Luis Obispo County Interior Valleys; San Luis Obispo County Mountains; Santa Barbara County Central Coast Beaches; Santa Barbara County Inland Central Coast; Santa Ynez Valley; Santa Barbara County Southwestern Coast; Santa Barbara County Southeastern Coast; Santa Ynez Mountains Western Range; Santa Ynez Mountains Eastern Range; Santa Barbara County Interior Mountains; Ventura County Beaches; Ventura County Inland Coast; Lake Casitas; Ojai Valley; Central Ventura County Valleys; Southeastern Ventura County Valleys; Santa Susana Mountains

Urgency: Expected

Certainty: Likely

Onset: 9/9/2026, 5:00:00 PM

Expires: 9/8/2026, 11:00:00 PM

Details

* WHAT...Temperatures of 85 to 105 expected. 10 to 20 degrees above normal. * WHERE...A portion of southwest California. * WHEN...From 10 AM Wednesday to 8 PM PDT Thursday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Humid conditions will add to heat discomfort. Heat peaking on Wednesday for most areas, except likely peaking Thursday for the Santa Barbara South Coast. Chance for Heat Advisories to be extended into Friday.

What To Do

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

Other Active Heat Advisory Alerts

Heat Advisory issued September 7 at 11:55AM PDT until September 10 at 8:00PM PDT by NWS Los Angeles/Oxnard CA

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

Heat Advisory issued September 7 at 1:16PM CDT until September 8 at 8:00PM CDT by NWS Fort Worth TX

Fannin; Lamar

Heat Advisory issued September 7 at 1:16PM CDT until September 8 at 8:00PM CDT by NWS Kansas City/Pleasant Hill MO

Doniphan; Atchison; Nodaway; Worth; Gentry; Harrison; Holt; Andrew; De Kalb; Daviess; Grundy; Buchanan; Clinton; Caldwell; Livingston; Ray; Carroll; Chariton; Lafayette; Saline; Howard; Johnson; Pettis; Cooper; Henry

Heat Advisory issued September 7 at 1:16PM CDT until September 8 at 8:00PM CDT by NWS Fort Worth TX

Montague; Cooke; Grayson; Wise; Denton; Collin; Hunt; Delta; Hopkins; Tarrant; Dallas; Rockwall; Kaufman; Van Zandt; Rains; Johnson; Ellis; Henderson; Navarro

Heat Advisory issued September 7 at 11:09AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA

Riverside County Mountains; San Diego County Mountains

Source: National Weather Service.