Ontario August 30, 2019 1:30 pm Music, Animals, Food and Fun at the LA County Fair! The LA County Fair opens Friday and runs until September 22. Toni Guinyard reports for NBC4 News at 11 a.m. on Friday, Aug. 30, 2019. US & World Videos 0:46 Bryson DeChambeau wins 2024 US Open 1:38 Kate Middleton celebrates Prince William on Father's Day hours after Trooping The Colour appearance 2:29 Post Fire claims 4,400 acres in Gorman 3:02 Gorman-area fire burns at least 3,500 acres 0:45 2024 US Open Round 3 recap