The heat wave hitting the Southland is expected to continue through Sunday, bringing with it a high fire danger.
Temperatures were expected to reach into the mid-90s in some areas Thursday, the National Weather Service said, and will continue to rise to the low 100s in inland areas by Friday.
The hot weather is expected to peak Saturday, with highs in the San Fernando Valley and Inland Empire ranging from 100 to 106 degrees.
The heat is caused by high pressure from the mountains that is pushed down into the valleys and stays there, keeping out ocean breezes that typically flow inland and provide relief.
The high temperatures, low humidity and offshore winds -- expected to reach speeds of 45 mph -- combined with critically dry vegetation will also increase the chance of fires throughout the region.