Spring continues to be slow to really begin as March nears its close. Case in point: There is a 30% chance of snow showers on Saturday afternoon, the National Weather Service says. The high is forecast to be 42. Accuweather says there may be light snow covering the ground in some parts of the Baltimore-D.C. area. Temperatures will remain in the 40s on Sunday, but it will be sunny. Next week will be a little warmer with highs in the 50s in the early part of the week.