First Alert Forecast August 7, 2021 10:22 am First Alert Forecast: Cooler Weekend Temperatures come down to SoCal as the marine layer returns. Shanna Mendiola has the forecast for Saturday, Aug. 27, 2021. US & World Videos 3:42 First Alert Forecast: Earlier Clearing 3:44 First Alert Forecast: Early Clouds & Afternoon Sun 2:57 First Alert Forecast: Warm up on the way 2:08 First Alert Forecast: Memorial Day Weekend 3:42 First Alert Forecast: More Sun by Memorial Day