Extreme Heat Warning California | Effective 03/21/2026 05:58

Headline: 
Extreme Heat Warning issued March 21 at 5:58AM PDT until March 21 at 8:00PM PDT by NWS San Diego CA
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
March 21, 2026 - 5:58am
Expires: 
March 21, 2026 - 8:00pm
Description: 
* WHAT...Dangerously hot conditions with temperatures 91 to 100. * WHERE...San Gorgonio Pass near Banning. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...Overnight low temperatures will only fall into the 70s and lower 80s reducing relief from the heat.
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. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.
Area Description: 
San Gorgonio Pass Near Banning
Forcast Office: 
NWS San Diego CA