First Alert Forecast June 10, 2021 5:13 am First Alert Weather: Highs Mostly in the Upper 70s Temperature highs will be mostly in the upper 70s today but a heatwave is looming. Belen De Leon has the forecast for Thursday June 10, 2021. US & World Videos 3:31 First Alert Forecast: Mostly Cloudy Saturday 3:12 First Alert Forecast: Rain this weekend 3:46 First Alert Forecast: Weekend Sprinkle Chance 3:47 First Alert Forecast: Morning Clouds & Fog 3:03 First Alert Forecast: More Clouds & Fog