First Alert Forecast September 19, 2023 4:39 pm First Alert Forecast: Cloudy & Cool Wednesday Clouds increase for Wednesday, and will struggle to clear during the afternoon. Meteorologist David Biggar has the evening forecast for Tuesday, September 19, 2023. 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