Extreme Heat Warning

Locations Affected

Riverside, CA ∙ Santa Ana, CA ∙ Irvine, CA ∙ San Bernardino, CA ∙ Anaheim, CA ∙ Orange, CA ∙ Fullerton, CA ∙ Fontana, CA ∙ Moreno Valley, CA ∙ Garden Grove, CA

Full Alert Message

URGENT - WEATHER MESSAGE National Weather Service San Diego CA 103 PM PDT Sat Aug 1 2026 ...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM PDT SUNDAY... * WHAT...Dangerously hot conditions with high temperatures in the mid 90s east of Interstate 5 expected. * WHERE...Orange County Inland Areas. * WHEN...Until 8 PM PDT Sunday. * 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.

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