First Alert Forecast October 21, 2024 4:40 pm First Alert Forecast: Midweek Warmth Temperatures will be warm for Tuesday and Wendesday. Meteorologist David Biggar has the evening forecast for Monday, October 21, 2024. US & World Videos 3:38 First Alert Forecast: Weekend Changes 1:33 First Alert Forecast: Warm Friday, cool down on the way 3:21 First Alert Forecast: Weekend Pattern Change 3:05 First Alert Forecast: Warm and dry 3:11 First Alert Forecast: High temperatures