Hope you soaked up as much vitamin D as you could on Saturday. It’s going to have to last you a few days. Today begins the first in a series of rainy days in the forecast, according to the National Weather Service. Rain should begin falling by 11 a.m., and will get quite heavy tonight. On Monday, showers are likely, but things should begin to dry out. Tuesday’s forecast sports a 20 percent chance of rain and mostly cloudy skies, with more of the same on Wednesday. The sun should return on Thursday.