3 day forecast for free .. but if you look at the 6 day map on the main page and compare it to the 3 day you can get the extended outlook too. Try here ... http://www.snow-forecast.com/maps/appal_3days.shtml
Personally, I don't trust the extended outlook on Accuweather overly much. Six days out is about as accurate you can get, unless it's a monster storm, especially in a DCSki winter. I love watching the weather persons falling all over themselves when predicting a major storm that fizzles or vice versa, which seem to be the norm in the mid-Atlantic. IMHO .. about the most reliable source for prognosis outside of one week seems to be WxRisk. He calls the storms with a pretty good average, much better than the major weather services like Weather.com and Accuweather. So does Roemer but his subscription fees are way up there.
I wonder if the subscription weather from Accuweather is more accurate than freebee stuff on their website?