September 25, 2019 11:40 pm Jeff's Forecast: Cooling Air, Fog and Rain Chances Temperatures will start to drop Thursday with bigger changes Friday into the weekend. Chief Meteorologist Jeff Ranieri has details on this and when rain moves close in your Microclimate Forecast. US & World Videos 2:51 Cinthia's forecast: Spring storm, cooler temperatures 2:58 Jeff's Forecast: Saturday rain drops temps and brings major Sierra snow 3:25 Bay Area Forecast: Storm brings rain, colder temps and big Sierra snow 2:31 Forecast: Rainy Saturday ahead 2:12 Kari's forecast: Rainy Saturday ahead