San Luis Obispo, Calif. – Triple-digit heat will grip much of Southern California’s inland valleys and hills beginning Thursday morning, with the National Weather Service warning of temperatures between 90 and 105 degrees lasting into Friday night.
According to the National Weather Service in Los Angeles, a heat advisory takes effect at 11 a.m. Thursday for the inland Central Coast of San Luis Obispo and Santa Barbara counties, as well as Central Ventura County valleys, Ojai Valley, Lake Casitas, and the Palos Verdes Hills. The advisory remains in place until 9 p.m. Friday.
Communities such as San Luis Obispo, Santa Maria, Buellton, Ojai, Fillmore, and Santa Paula could experience the highest readings, raising risks of heat-related illness for vulnerable residents and those working or exercising outdoors. Officials urged people to drink water frequently, avoid midday sun, and check on elderly neighbors who may not have access to cooling.
Ventura County health officials recommend limiting strenuous activity to early morning or evening hours and moving quickly to shade or air conditioning at the first sign of heat exhaustion. OSHA guidance also calls for frequent breaks for outdoor workers.
The heat is expected to ease by Friday night, but advisories may be extended if temperatures remain elevated into the weekend.