June 21, 2017 4:45 am AM Forecast: Extreme Heat It’s the first official day of summer, and the heat wave is persisting. Shanna Mendiola has your First Alert Forecast on Wednesday, June 21, 2017. US & World Videos 18:12 Police begin to clear protesters from USC campus 3:18 USC's commencement preparation includes increased security patrol 1:56 1 person killed after car crashes into South LA church 3:30 Protest on USC campus continues ahead of graduation 0:43 LA County releases sterile mosquitoes as warmer weather nears
