With Derby officials predicting a good turnout for the races and other festivities, here's the all important reminder about traffic. As is the case every year, there are plenty of street closings. As they say, know before you go.Look here for road closings and no parking areas.Look here for information on items allowed or disallowed at the Derby.The outlook for rain has improved for Oaks: the National Weather Service forecasts a 30% chance of rain today, with the best chance in the morning hours. It should be partly cloudy this afternoon with a high of 69 degrees.