weather September 4, 2020 6:28 am First Alert Forecast: Labor Day Weekend Brings Heat SoCal will face dangerously high temperatures throughout the Labor Day weekend. Belen De Leon has your First Alert forecast for Friday, Sept. 4, 2020. US & World Videos 3:46 First Alert Forecast: Beautiful Week Ahead 3:18 First Alert Forecast: Breezy Sunday 3:31 First Alert Forecast: Mostly Cloudy Saturday 3:12 First Alert Forecast: Rain this weekend 3:46 First Alert Forecast: Weekend Sprinkle Chance