UPDATE: Heat advisory in place for San Francisco County until Thursday evening

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The NWS San Francisco CA issued an updated heat advisory at 12:38 p.m. on Thursday in effect until 6 p.m. for San Francisco County.

The NWS informs, "High temperatures up to 90 degrees expected in the City."

"This level of heat affects primarily those individuals extremely sensitive to heat, especially when outdoors without effective cooling and/or adequate hydration," says the NWS.

This advisory is in effect until 6 p.m.

NWS Heat Wave Safety Advice: Protect yourself with these recommendations

• Stay hydrated: Remember to drink plenty of fluids.
• Seek shelter: Stay indoors in an air-conditioned room to keep cool.
• Check on others: Stay out of the sun, and make sure to check up on relatives and neighbors.
• Child and pet safety: Do not leave young children and pets unattended in vehicles when car interiors can reach lethal temperatures in a matter of minutes.
• Exercise caution outdoors: If you work or spend time outside, take additional safety measures.
• Select the ideal time: If possible, move strenuous activities to early morning or evening for more favorable conditions.
• Recognize early indicators: Learn to identify the warning signs of heat exhaustion and heat stroke.
• Dress comfortably: 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 June 11, 2026 at 11:21 AM.