First Alert Forecast September 12, 2022 8:39 am First Alert Forecast: Partly Cloudy Start to the Week, With Chance of Storms Temperatures are still warm, but nowhere near as high as last week. Belen De Leon has the forecast for Monday, Sept. 12, 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