Moderate Expected Likely Heat Advisory Heat Advisory issued July 22 at 9:01PM PDT until July 27 at 8:00PM PDT by NWS San Diego CA Jul 22, 9:01 PM → Jul 27, 8:00 PM WHAT: High temperatures in the 90s and low temperatures in theupper 60s and lower 70s expected. WHERE: Orange County Inland Areas. WHEN: Until 8 PM PDT Monday. IMPACTS: Hot temperatures may cause heat illnesses. + Read More Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Updated: Jul 23, 5:45 AM Source: NWS Alert