Extreme Heat Warning

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service San Diego CA 421 AM PDT Thu Jul 16 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * WHAT...High temperatures in the lower 90s for portions of inland Orange County, in the 90s in the San Diego valleys, in the mid 90s to 104 in the Inland Empire, and in the upper 80s to upper 90s in the mountains below 6000 feet. * WHERE...Orange County Inland Areas, Riverside County Mountains, San Bernardino County Mountains, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Mountains, San Diego County Valleys, San Gorgonio Pass near Banning, and Santa Ana Mountains and Foothills. * WHEN...Until 8 PM PDT this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. PRECAUTIONARY/PREPAREDNESS ACTIONS... 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.