First Alert Forecast June 21, 2021 5:28 am First Alert Weather: Cooler Trend Continues The Cooler Trend Continues With Temperature Highs in the 70s for the Coast and 90s for the Valleys and Inland Empire Expected Monday. Belen De Leon has the forecast for Monday June 21, 2021. US & World Videos 2:59 First Alert Forecast: Windy Friday with possible showers 3:46 First Alert Forecast: Windy Friday 2:51 First Alert Forecast: Cooler weather lingers before weekend warm-up 3:49 First Alert Forecast: Cloudy & Drizzly Thursday 3:03 First Alert Forecast: Sweater weather