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Updated:July 6, 2026 11:45 am PDT

Extreme Heat Warning EXTREME HEAT WARNING  
San Diego County

  Effective: Mon, 7/6 12:09am Severity:  Severe 
  Updated: July 6, 2026 11:45 am Urgency: Expected
  Expires: Mon, 7/6 3:30pm Certainty: Likely

Areas Affected: San Diego County Deserts
 
Alert Details:
* WHAT...Dangerously hot conditions with high temperatures up to 117
expected.

* WHERE...San Diego County Deserts.

* WHEN...From 10 AM Tuesday to 8 PM PDT Thursday.

* IMPACTS...Heat related illnesses increase significantly during
extreme heat events.

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