California Moderate Heat Advisory | Effective 09/08/2026 07:01

Headline: 
Heat Advisory issued September 8 at 7:01AM PDT until September 10 at 8:00PM PDT by NWS San Diego CA
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
September 8, 2026 - 7:01am
Expires: 
September 8, 2026 - 3:15pm
Description: 
* WHAT...For the Extreme Heat Warning, dangerously hot conditions with high temperatures in the mid 90s to 105 with low temperatures in the 70s expected. For the Heat Advisory, high temperatures in the 90s to 102 expected. * WHERE...San Diego County Valleys. * WHEN...For the Extreme Heat Warning, until 8 PM PDT Wednesday. For the Heat Advisory, from 8 PM Wednesday to 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Moderate to major HeatRisk. Elevated lows will limit overnight relief from the heat.
Instruction: 
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Area Description: 
San Diego County Inland Valleys
Forcast Office: 
NWS San Diego CA
Sender: 
w-nws.webmaster@noaa.gov