The NWS issued an excessive heat warning for the mountains and deserts, where highs are forecast to range from 117-122 degrees, starting at 10 a.m. Friday and continuing at least through 8 p.m. Sunday.
Highs in the foothill and mountain areas at elevations around 3,000 feet or lower are forecast to range from 100-105 degrees.
“Exceedingly high temperatures can cause heat-related illness or death,” the NWS warned. “Those working or playing outdoors, and those without air conditioning are most vulnerable.”
To avoid heat-related illness or death, people should wear light-weight, loose-fitting clothing and avoid strenuous outdoor exercise during the heat of the day.
Beach temperatures should be about right, mostly in the 70s and low 80s, with surf-zone water temperatures ranging from 67-71 degrees. The NWS warned about the potential for rip currents, though the surf will be relatively calm today, with breakers up to about 4 feet.
“Above normal surf and the high risk of dangerous rip currents will diminish late Friday,” according to the NWS, which said breakers would be rolling in up about 6 feet tomorrow.