Tustin, CA Weather Warnings

Heat Advisory issued July 20 at 9:26PM PDT until July 27 at 8:00PM PDT by NWS San Diego CA * WHAT...High temperatures 90 to 100 degrees expected. Low temperatures in the upper 60s to low 70s. * WHERE...Orange County Inland Areas, San Diego County Valleys, and Santa Ana Mountains and Foothills. * WHEN...From 10 AM Wednesday to 8 PM PDT Monday. * IMPACTS...Hot temperatures may cause heat illnesses. * ADDITIONAL DETAILS...Widespread moderate HeatRisk with localized major HeatRisk. Elevated low temperatures will limit overnight relief from the heat. Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors.

National Weather Service