First Alert Forecast August 19, 2021 6:25 am First Alert Forecast: Look at Dip in the Temperatures The cooler August weather won’t last. Belen De Leon has the forecast for Thursday Aug. 19, 2021. US & World Videos 3:07 First Alert Forecast: Patchy clouds and fog 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