Southern California placed under an extreme heat watch from Tuesday to Thursday

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On Sunday at noon the NWS San Diego CA released an extreme heat watch valid from Tuesday 10 a.m. until Thursday 8 p.m. The watch is for San Diego County Coastal Areas, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Inland Valleys, San Bernardino County Mountains, Riverside County Mountains, Santa Ana Mountains and Foothills, San Diego County Mountains, San Gorgonio Pass Near Banning, Orange County Coastal and Orange County Inland.

The NWS informs, "Hot and humid conditions with elevated overnight temperatures. High temperatures will range from the 90s in the mountains below 6,000 feet, 95 to 105 or more for inland valleys, and 80s for areas near the coast."

"Heat related illnesses increase significantly during extreme heat events," explains the NWS.

This watch 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.
• Avoid direct sun exposure: Protect yourself and check on vulnerable 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.
• Take extra precautions outdoors: If you work or spend time outside, be sure to take additional safety measures.
• Select the ideal time: If possible, move strenuous activities to early morning or evening for more favorable conditions.
• Recognize warning signs: Familiarize yourself with symptoms of heat exhaustion and heat stroke.
• Stay cool with clothing: Select lightweight and loose-fitting outfits for enhanced comfort.

To reduce risk during outdoor work, the Occupational Safety and Health Administration (OSHA) recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. In an emergency, call 911.

Source: The National Weather Service

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This story was originally published July 12, 2026 at 12:04 PM.