10/09/2015 09:30 AM PDT

Heat Advisory-Friday October 9

The National Weather Service in San Diego has issued a heat advisory for San Diego County coastal and valley areas from 10 a.m. to 8 p.m. Friday. Temperatures will be 10 to 20 degrees above average. Saturday and Sunday will still be very warm with highs 5 to 15 degrees above average.

The County operates a Cool Zones program and has designated buildings as cooling centers.

Visit www.sandiegocounty.gov/hhsa/programs/ais/cool_zones/index.html or call 2-1-1 for a complete list of cooling zone locations including hours of operation.