Excessive Heat Watch issued July 29 at 2:49PM PDT until August 03 at 8:00PM PDT by NWS

...EXTENDED PERIOD OF VERY HOT TEMPERATURES EXPECTED THIS WEEK... .HOT TEMPERATURES THIS WEEKEND WILL BECOME VERY HOT AND DANGEROUS THIS WEEK AS A STRONG RIDGE BUILDS OVER THE AREA. THESE HOT TEMPERATURES WILL LAST THROUGH MOST OF THE WEEK, POSSIBLY INTO NEXT WEEKEND, WILL LITTLE RELIEF FROM WARM OVERNIGHT TEMPERATURES.

from Current Watches, Warnings and Advisories for the United States Issued by the National Weather Service http://ift.tt/2w9GqWo