Extreme heat warning in place for Southern California from Tuesday to Thursday

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The NWS Los Angeles/Oxnard CA released an extreme heat warning at 8:38 a.m. on Monday valid from Tuesday 10 a.m. until Thursday 8 p.m. The warning is for Santa Barbara County Southwestern Coast, Santa Barbara County Southeastern Coast, Santa Ynez Mountains Western Range, Santa Ynez Mountains Eastern Range, Lake Casitas, Ojai Valley, Central Ventura County Valleys, Western Santa Monica Mountains Recreational area, Eastern Santa Monica Mountains Recreational area, Calabasas and Agoura Hills, Southeastern Ventura County Valleys, Western Antelope Valley Foothills, Eastern Antelope Valley Foothills and Antelope Valley.

"Temperatures of 90 to 110 degrees, hottest on Wednesday and over interior areas," can be anticipated according to the NWS. "Humid conditions will add to the heat to potentially worsen heat impacts. Effects of the heat will build through the week, with warm overnight low temperatures providing little relief from the heat."

"There is a high risk for dangerous heat illness for anyone, especially for the very young, the very old, those without air conditioning, and those active outdoors," describes the NWS.

This warning is in effect until Thursday at 8 p.m.

During heat waves, consider the following tips from the NWS

• Stay hydrated: Keep yourself well-hydrated by drinking plenty of fluids.
• Seek cool shelter: Opt for an air-conditioned room to stay comfortable.
• Stay out of the sun, and check up on relatives and neighbors.
• Ensure child and pet safety: Take every precaution to never leave young children and pets alone in vehicles, especially in extreme heat when car interiors can quickly become hazardous.
• Be mindful outdoors: Take extra precautions when working or spending time outside.
• Consider the timing: When possible reschedule strenuous activities to early morning or evening.
• Recognize warning signs: Know the signs and symptoms of heat exhaustion and heat stroke.
• Stay cool with clothing: Wear lightweight and loose-fitting clothing.

For a safer outdoor work environment, follow the Occupational Safety and Health Administration (OSHA)'s guidance by scheduling regular rest breaks in shaded or air-conditioned places. If anyone shows signs of heat illness, promptly move them to a cool, shaded area. In an emergency, call 911.

Source: The National Weather Service

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This story was originally published July 13, 2026 at 8:44 AM.