Those comfortable Fourth of July temperatures will come to an end this week as Southern California braces for more summer-like conditions and a heat advisory.

“Definitely going to be a tough week in front of us as finally we see a shift in the weather pattern,” KTLA meteorologist Henry DiCarlo said Monday. “We are going to see temperatures for the inland valleys making a run toward 100 degrees, more so tomorrow and through the rest of the week.”

The National Weather Service has issued a heat advisory from 10 a.m. Tuesday through 8 p.m. Thursday as highs in the inland valleys reach between 90 and 100 degrees. Temperatures of 104 degrees or higher will be possible over portions of the Antelope Valley.

Residents are urged to stay out of the sun, wear light-colored clothing, drink plenty of water and never leave pets inside a hot car.

“We also have some fire concerns as we’re going to get some gusty winds going,” Henry said.

Temperatures are expected to cool slightly after Thursday, according to the Weather Service.

“We do get a moderate pullback for the upcoming weekend, but still warm and still above average,” Henry said.

One person is dead and multiple people were injured in a four-car crash near the Tarzana-Encino border Sunday.

The Los Angeles Fire Department responded to the crash on the 6400 block of Lindley Avenue at 6:02 p.m.

One person was pronounced dead at the scene of the crash, firefighters said. A woman in her 30s was taken to the hospital for unknown injuries.

A power pole was brought down by the crash, causing telephone lines to fall into the street. Images of the crash appear to show the power pole lying across the hood of a black sedan in the area.

No other details are available at this time.