Looks like a chance of freezing rain early tomorrow morning, and then just heavy rain as the morning goes on. Chance of moderate freezing rain north and northwest of the city. Shouldn't be terrible though. Doubt anything will be cancelled...may be some 2-hour delays. NWS issued a freezing rain advisory for the area.
Freezing Rain Advisory
Statement as of 11:57 AM EST on February 01, 2011
... Freezing Rain Advisory in effect from 9 PM this evening to
7 am EST Wednesday...
... Winter Weather Advisory will expire at noon EST today...
The National Weather Service in Baltimore MD/Washington has
issued a Freezing Rain Advisory... which is in effect from 9 PM
this evening to 7 am EST Wednesday. The Winter Weather Advisory
will expire at noon EST today.
* Precipitation type... freezing rain.
* Accumulations... a tenth inch or less of icing from freezing rain.
* Timing... freezing rain tonight. With rising temperatures
expected overnight... precipitation in some locations could
change to plain rain.