First Alert Forecast September 22, 2022 7:32 am First Alert Forecast: First Day of Fall Brings Cool Morning Temperatures Temperatures will heat up in the afternoon, and the weekend will feel more like summer. Belen De Leon has the forecast for Thursday, Sept. 22, 2022. 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