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 3:00 First Alert Forecast: Cool for Black Friday shoppers 2:46 First Alert Forecast: Mostly sunny, offshore winds 3:42 First Alert Forecast: Mostly Sunny Thanksgiving 3:47 First Alert Forecast: Dry Wednesday 2:33 First Alert Forecast: Light showers, gusty deserts