First Alert Forecast March 17, 2021 5:29 am First Alert Forecast: Highs in the 60s Temperatures will warm slightly. Belen De Leon has the forecast for Wednesday March 17 2021. US & World Videos 3:44 First Alert Forecast: Nice Weather Continues 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