California Moderate Heat Advisory | Effective 08/26/2026 21:31

Headline: 
Heat Advisory issued August 26 at 9:31PM PDT until August 28 at 8:00PM PDT by NWS San Diego CA
Event: 
Heat Advisory
Urgency: 
Expected
Effective: 
August 26, 2026 - 9:31pm
Expires: 
August 27, 2026 - 6:15am
Description: 
* WHAT...High temperatures in the mid 90s to low 100s expected. * WHERE...Riverside County Mountains. * WHEN...Until 8 PM PDT Friday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Low temperatures 10 to 15 degrees above normal will limit relief from the heat. Rising temperatures through Friday will increase the threat of heat-related illness across populations.
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: 
Riverside County Mountains
Forcast Office: 
NWS San Diego CA
Sender: 
w-nws.webmaster@noaa.gov