California Severe Extreme Heat Warning | Effective 10/03/2026 18:05

Headline: 
Extreme Heat Warning issued October 3 at 6:05PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
October 3, 2026 - 6:05pm
Expires: 
October 4, 2026 - 2:15am
Description: 
* WHAT...Dangerously hot conditions with high temperatures in the mid 90s to 105 and warm nights with low temperatures in the 70s expected. * WHERE...Orange County Inland Areas. * WHEN...Until 8 PM PDT Thursday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
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: 
Orange County Inland
Forcast Office: 
NWS San Diego CA
Sender: 
w-nws.webmaster@noaa.gov