Season's first real rain expected Sunday night Gretchen Wenner, Ventura County Star Seven tips for driving during heavy rain Replay Video UP NEXT Rain is expected to hit Ventura County starting Sunday night when the season's first notable storm arrives in the final days of December. For coastal and valley areas, about a half-inch to an inch is expected between Sunday night and Monday evening, according to the National Weather Service. Mountain areas could see 1-1.5 inches, with up to 2 inches drenching some areas. As the system moved closer Saturday, forecasts showed increased activity compared with the outlook on Friday night. Expected rain totals had gone up slightly. Showers were predicted to stick around longer — until Monday evening in Ventura County — due to development of a secondary front.