First Alert Forecast August 30, 2020 1:48 pm First Alert Forecast: Cool Mornings We’ll have a few cooler mornings before a big weekend heat up for Labor Day. Shanna Mendiola has the First Alert Forecast Aug. 30, 2020. US & World Videos 3:06 First Alert Forecast: Warm weather ahead 3:07 First Alert Forecast: Patchy clouds and fog 2:59 First Alert Forecast: Windy Friday with possible showers 3:46 First Alert Forecast: Windy Friday 2:51 First Alert Forecast: Cooler weather lingers before weekend warm-up