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 3:12 First Alert Forecast: Clear and Chilly Friday 2:28 First Alert Forecast: Chilly temperatures 3:05 First Alert Forecast: Cooler Thursday 3:50 First Alert Forecast: Breezy Wednesday 3:42 First Alert Forecast: Winds & Fire Danger