National Weather Service United States Department of Commerce

A system will move out of the Rockies, and into the plains overnight and Tuesday morning. Mostly rain is expected, but some snow is also possible during the early morning hours on Tuesday. Locations west of the James River valley will see the highest probabilities for rain of a quarter inch or more. The system moves out by Tuesday afternoon and evening. The rest of the work week looks dry.
The latest 30 day outlook (May) was recently issued by the Climate Prediction Center. Probabilities favor a warmer than normal southern half of the continental United States. Precipitation probabilities favor wetter than normal in the east, and drier in the west.