First Alert Forecast August 17, 2020 5:28 am First Alert Forecast: Poor Air Quality and Intense Heat Thunderstorms are possible in deserts and mountains. Belen De Leon has the forecast for Monday Aug. 17, 2020. US & World Videos 3:46 First Alert Forecast: Beautiful Week Ahead 3:18 First Alert Forecast: Breezy Sunday 3:31 First Alert Forecast: Mostly Cloudy Saturday 3:12 First Alert Forecast: Rain this weekend 3:46 First Alert Forecast: Weekend Sprinkle Chance