After a weekend in which two storms moved through Southern California, forecasters said the weather for the coming workweek would be chilly and windy but mostly dry. The Los Angeles area was expected to see temperatures in the mid-60s on Monday, about six degrees cooler than usual for this time of year, said Stuart Seto, a weather specialist with the National Weather Service in Oxnard. In the mountains of Los Angeles County, temperatures were forecast to hover in the 40s and 50s, with powerful winds that could reach as high as 60 mph.