Extreme Heat Warning California | Effective 03/16/2026 21:54

Headline: 
Extreme Heat Warning issued March 16 at 9:54PM PDT until March 21 at 8:00PM PDT by NWS San Diego CA
Event: 
Extreme Heat Warning
Urgency: 
Expected
Effective: 
March 16, 2026 - 9:54pm
Expires: 
March 17, 2026 - 6:15am
Description: 
* WHAT...Dangerously hot conditions with temperatures 104 to 112 degrees expected, high temperatures locally up to 114 possible Thursday/Friday. Low temperatures will be in the low to mid-70s. * WHERE...Coachella Valley, San Diego County Deserts, and San Gorgonio Pass near Banning. * WHEN...From 10 AM Wednesday to 8 PM PDT Saturday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...High temperatures this week will be 20 to 30 degrees above normal for this time of year. Record breaking heat is likely. Widespread Major HeatRisk expected.
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: 
Coachella Valley; San Diego County Deserts; San Gorgonio Pass Near Banning
Forcast Office: 
NWS San Diego CA
Sender: 
w-nws.webmaster@noaa.gov