The heat wave hitting Southern California isn’t going away. The National Weather Service says the Southland will continue to swelter well into next week, bringing triple digit temperatures to inland valleys along with elevated fire danger and the potential for power outages. An excessive-heat warning will be in effect through Friday night, but the heat wave is likely to persist until the following Thursday, according to the weather service. Palmdale, Lancaster and Woodland Hills are facing the brunt of the heat: All three locations are forecast to stay in the triple digits through Labor Day.