If you don't mind a bit of a drive, you should definitely check out Windblown in New Ipswich, NH just over the MA border from Fitchburg.  Skiing conditions there are fantastic!!! They got a lot of new snow and all trails are open.  Not to mention the great views of Mt. Monadnock, the hairpin turn, and open slope, which is great for practicing your snow plow and turns.  I went up there Sa for a Boston AMC Skiing workshop and it was great.  Very nice mom and pop operation, you wouldt love it!!  Lots of trail options too and a great place to practice on hills.