First Alert Forecast September 24, 2024 4:38 pm First Alert Forecast: Below Normal Temperatures Temperatures remain below average for the rest of the week. Meteorologist David Biggar has the evening forecast for Tuesday, September 24, 2024. US & World Videos 3:29 First Alert Forecast: Cooler Than Average Temperatures 3:18 First Alert Forecast: Cooling down 3:01 First Alert Forecast: Foggy morning 3:46 First Alert Forecast: Thin Marine Layer 3:39 First Alert Forecast: Beautiful Saturday