Sunshine and high temperatures in the mid-70s are forecast Friday, before shower chances arrive for the weekend and the Preakness, according to the National Weather Service.
Overnight lows were forecast in the lower 60s.
Clouds are expected to gradually increase overnight Friday, bringing a slight chance of showers from early Saturday morning through the weekend and into early next week. Rain chances are estimated at about 20 percent during the day Saturday and 40 percent in the evening and overnight.
About a quarter of an inch of rain is possible Saturday, according to the weather service. Highs are expected in the mid-70s, with lows in the upper 50s.
Rain chances increase Sunday, at about 60 percent, with highs around 70 degrees and lows in the mid-60s. Rain and storm chances continue Monday and Tuesday.