Temperatures are expected to remain in the triple digits through Thursday, prompting weather forecasters to issue an “excessive heat” watch for most of the valley and foothill areas.
Temperatures could get as high as 108 degrees today, with the same forecast for Wednesday, according to the National Weather Service.
Not until Friday are temperatures forecast to come down back into the low-90s range.
Public health officials have warned residents to be extra mindful of outdoor pets and elderly neighbors who are among the most susceptible to heat-related illnesses. Utilities, like Glendale Water & Power, also urged customers to conserve energy during peak demand times should the need to export power to other agencies arise.
Glendale officials said the city's own grid had enough power to meet local demand.
City officials also reminded residents without air conditioning that they could seek relief in several "cooling stations."
Burbank officials said they would open three "cooling centers" Tuesday and Wednesday to help residents cope with the heat wave.
The stations will be at the Joslyn Adult Center, 1301 W. Olive Ave. from 8 a.m. to 8 p.m.; the Buena Vista Library, 200 N. Buena Vista St. from 10 a.m. to 9 p.m.; and the Central Library, 110 N. Glenoaks Blvd. from 9:30 a.m. to 9 p.m.
In Glendale, the cooling centers remain active throughout the week. At the Adult Recreation Center, 201 East Colorado, the hours are from 8 a.m. to 4 p.m. Monday through Friday, 9 a.m. to 4 p.m. on Saturday and 9 a.m. to 1 p.m. on Sunday.
At the Sparr Heights Community Center, 1613 Glencoe Way, the hours are from 8 a.m. to 6 p.m. Monday through Friday, closed weekends. And at the Pacific Community Center, 501 S. Pacific Ave. , the hours are 9 a.m. to 9 p.m. Monday through Thursday, and 9 a.m. to 5 p.m. Friday and Saturday.