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Updated:August 3, 2026 2:15 pm PDT

Heat Advisory HEAT ADVISORY  
San Luis Obispo County
Effective: Mon, 8/3 1:51pm Severity:  Moderate 
Updated: August 3, 2026 2:15 pm Urgency: Expected
Expires: Tue, 8/4 2:00am Certainty: Likely
Areas Affected: San Luis Obispo County Interior Valleys - San Luis Obispo County Mountains - Santa Barbara County Interior Mountains - Santa Susana Mountains - Southern Ventura County Mountains - Interstate 5 Corridor - Western San Gabriel Mountains and Highway 14 Corridor - Eastern San Gabriel Mountains
 
Alert Details: 
* WHAT...Very warm temperatures of 90 to 105 degrees expected.

* WHERE...Eastern San Gabriel Mountains, Interstate 5 Corridor, San
Luis Obispo County Interior Valleys, San Luis Obispo County
Mountains, Santa Barbara County Interior Mountains, Santa Susana
Mountains, Southern Ventura County Mountains, and Western San
Gabriel Mountains and Highway 14 Corridor.

* WHEN...Until 8 PM PDT Wednesday.

* IMPACTS...Hot temperatures may cause heat illnesses.

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