First Alert Forecast December 21, 2021 6:15 am First Alert Forecast: Wet Weather Is on the Way For the Holidays Rain could complicated holiday travel plans, as separate systems move through SoCal throughout the week. Belen De Leon has the forecast for Tuesday, Dec. 21, 2021. US & World Videos 2:28 First Alert Forecast: Chilly temperatures 3:05 First Alert Forecast: Cooler Thursday 3:25 First Alert Forecast: Critical fire weather 3:50 First Alert Forecast: Breezy Wednesday 3:42 First Alert Forecast: Winds & Fire Danger