First Alert Forecast September 17, 2024 4:46 pm First Alert Forecast: Cool Wednesday Temperatures remain cool for the next few days before warming up this weekend. Meteorologist David Biggar has the evening forecast for Tuesday, September 17, 2024. US & World Videos 3:48 First Alert Forecast: Friday Storm Chance 3:12 First Alert Forecast: Morning drizzle followed by below-normal temperatures 3:45 First Alert Forecast: Morning Drizzle 2:34 First Alert Forecast: Cooler temperatures 3:10 First Alert Forecast: Cooling trend