First Alert Forecast September 30, 2024 4:37 pm First Alert Forecast: Heat Returns Temperatures will warm up for the middle of the week, and more heat is on the way for the weekend. Meteorologist David Biggar has the evening forecast for Monday, September 30, 2024. US & World Videos 3:49 First Alert Forecast: Dangerous Heat for Wednesday 2:55 First Alert Forecast: High temperatures on the way 3:48 First Alert Forecast: Beautiful Weekend 3:45 First Alert Forecast: Coastal Fog 3:29 First Alert Forecast: Cooler Than Average Temperatures