6/21/2017 8:30:00 AM PDT

The National Weather Service has extended the Excessive Heat Warning for San Diego County deserts until 9 p.m. Sunday.

High temperatures Wednesday (115-121°), Thursday-Saturday (112-118°) and Sunday (115°).

The County operates a Cool Zones program and has designated more than 115 air-conditioned buildings as cooling centers. For a listing of Cool Zone locations, hours of operation, and tips to beat the heat, visit www.sandiegocounty.gov/hhsa/programs/ais/cool_zones/index.html.

More forecast information and updates are available from the National Weather Service.