California Severe Extreme Heat Warning | Effective 10/01/2026 13:12

Headline: 
Extreme Heat Warning issued October 1 at 1:12PM PDT until October 8 at 8:00PM PDT by NWS San Diego CA
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
October 1, 2026 - 1:12pm
Expires: 
October 1, 2026 - 9:15pm
Description: 
* WHAT...Dangerously hot conditions with high temperatures in the upper 90s to 106 expected. Nights will be very warm with low temperatures mostly in the upper 60s to mid 70s. * WHERE...San Diego County Valleys. * WHEN...From 10 AM Friday to 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: 
San Diego County Inland Valleys
Forcast Office: 
NWS San Diego CA
Sender: 
w-nws.webmaster@noaa.gov