Heat Advisory

Locations Affected

Riverside, CA ∙ Chula Vista, CA ∙ San Bernardino, CA ∙ Anaheim, CA ∙ Irvine, CA ∙ Santa Ana, CA ∙ San Diego, CA ∙ Huntington Beach, CA ∙ Fullerton, CA ∙ Fontana, CA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service San Diego CA 243 AM PDT Mon Mar 16 2026 ...HEAT ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO 8 PM PDT FRIDAY... * WHAT...High temperatures in the mid 80s to mid 90s for inland coastal areas to the mid 90s to 102 for the valleys are expected with the peak of the heat around Thursday. Hot conditions with temperatures 80 to 90 degrees near the coast and 95 to 105 inland. Hottest weather likely on Thursday and Friday. * WHERE...Orange County Coastal Areas, Orange County Inland Areas, San Bernardino and Riverside County Valleys-The Inland Empire, San Diego County Coastal Areas, San Diego County Valleys, and Santa Ana Mountains and Foothills. * WHEN...From 10 AM this morning to 8 PM PDT Friday. * IMPACTS...Hot temperatures may cause heat illnesses. 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. 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.

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