Heat Advisory issued June 17 at 4:16AM PDT until June 21 at 9:00PM PDT by NWS

...Extended period of very hot temperatures expected across the interior portions of southwest California this weekend through the middle of next week... .Strong high pressure building across the western states will cause temperatures to climb to 12 to 18 degrees above normal in many parts of interior southwest California this weekend through

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2sbQ3EY