First Alert Forecast March 29, 2021 5:23 am First Alert Forecast: Highs in the 70s and 80s An onshore breeze develops during the afternoon. David Biggar has the forecast for Monday March 29, 2021. US & World Videos 3:00 First Alert Forecast: Sunday forecast 2:35 First Alert Forecast: Another round of May Gray 3:09 First Alert Forecast: What's ahead for the weekend 3:39 First Alert Forecast: May Gray Lingers 3:04 First Alert Forecast: Temperatures stay in the 60s and 70s