A cold front will slide south through the region tonight. We will see an increase in cloud cover with this system...as well as a chance of light snow...which will be mixed with some light rain initially. Light snow to taper off by early Friday morning as system exits region. Any accumulations are expected to be light...generally a dusting to a quarter of an inch. Colder conditions expected for the last part of the work week and into the weekend...with highs only in the low to upper 30s by Saturday.   (Please visit http://weather.gov/lsx for more information.)