First Alert Forecast April 19, 2021 5:21 am First Alert Forecast: Temperatures Cool Off Later This Week Temperatures start out the week in the 80s. David Biggar has the forecast for Monday April 19, 2021. US & World Videos 3:18 First Alert Forecast: Breezy Sunday 3:31 First Alert Forecast: Mostly Cloudy Saturday 3:12 First Alert Forecast: Rain this weekend 3:46 First Alert Forecast: Weekend Sprinkle Chance 3:47 First Alert Forecast: Morning Clouds & Fog