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Updated:August 22, 2026 12:45 pm PDT

Heat Advisory HEAT ADVISORY  
Orange County

  Effective: Sat, 8/22 2:56am Severity:  Moderate 
  Updated: August 22, 2026 12:45 pm Urgency: Expected
  Expires: Sat, 8/22 2:15pm Certainty: Likely

Areas Affected: San Bernardino and Riverside County Valleys-The Inland Empire - San Diego County Inland Valleys - Riverside County Mountains - Santa Ana Mountains and Foothills - San Diego County Mountains - Orange County Inland
 
Alert Details:
* WHAT...Temperatures 90 to 97 for Inland Orange County, 90 to 102
for the San Diego County Valleys, 98 to 106 for the Inland Empire
and 89 to 100 in the mountains.

* WHERE...Orange County Inland Areas, Riverside County Mountains,
San Bernardino and Riverside County Valleys-The Inland Empire, San
Diego County Mountains, San Diego County Valleys, and Santa Ana
Mountains and Foothills.

* WHEN...From 10 AM this morning to 8 PM PDT Monday.

* IMPACTS...Hot temperatures may cause heat illnesses.

* ADDITIONAL DETAILS...Low temperatures 5 to 10 degrees above normal
will limit relief from the heat. Hot weather is likely to continue
much of next week.

Information:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.