First Alert Forecast September 4, 2024 6:47 am High temperatures this week across SoCal An excessive heat warning is in effect across SoCal as high temperatures stick around this week. Annette Arreola reports for the NBC4 News at 6 a.m. on Sept. 4, 2024. US & World Videos 3:40 First Alert Forecast: Finally Feeling Like Fall 2:04 First Alert Forecast: Cooling trend begins 3:05 First Alert Forecast: Cooldown this weekend 3:40 First Alert Forecast: Cooler Weekend Ahead 3:00 First Alert Forecast: Falling into Fall