First Alert Forecast September 20, 2017 5:00 pm PM Forecast: Cloudy Skies Ahead A marine layer will keep skies mostly cloudy, drop temperatures and bring a slight chance of drizzle. Fritz Coleman has your First Alert Forecast on Wednesday, Sept. 20, 107. US & World Videos 4:09 Parents speak out after son's beating at LA juvenile hall 3:30 How Los Angeles officials are responding to UCLA campus chaos 2:47 The LA County Fair kicks of 2024 season in Pomona 3:09 USC updates graduation plans as protest continues 4:28 Southern California artistic swimmers train for 2024 Paris Olympics