California Heat Advisory - Moderate | Effective 06/11/2026 11:37

Headline: 
Heat Advisory issued June 11 at 11:37AM PDT until June 11 at 11:00PM PDT by NWS San Francisco CA
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
June 11, 2026 - 11:37am
Expires: 
June 11, 2026 - 7:15pm
Description: 
* WHAT...High temperatures up to 90 expected in the City. * WHERE...San Francisco County. * WHEN...For the first Heat Advisory, until 11 PM PDT this evening. For the second Heat Advisory, from 8 AM to 6 PM PDT Friday. * IMPACTS...This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Impacts possible in some health systems and in heat-sensitive industries. This level of heat affects primarily those individuals extremely sensitive to heat, especially when outdoors without effective cooling and/or adequate hydration.
Instruction: 
Hydration is a critical piece to surviving the heat. Drink water, and if possible, take water to those who are vulnerable. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to the early morning or evening. Take action when you experience symptoms of heat exhaustion and/or heat stroke. Beat the heat and check the backseat! Do not leave young children or pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Area Description: 
San Francisco
Forcast Office: 
NWS San Francisco CA
Sender: 
w-nws.webmaster@noaa.gov