Southern California is preparing for a week of light rain, with rainfall amounts varying across different regions. Los Angeles and Ventura counties are expected to receive light rain, with Thousand Oaks and Santa Clarita anticipating approximately 0.2 inches. Downtown Los Angeles and Los Angeles International Airport may see about 0.1 inches, while Long Beach is forecasted to receive only 0.05 inches. The National Weather Service in Oxnard predicts that the rain will be most intense between 11 a.m. and 8 p.m. on Tuesday, advising residents to prepare for potentially slick roads and reduced visibility.