What's your genre?
There's an RWA chapter that meets in Wellesley the third Sunday of each month, with the next meeting this Sunday, I believe. At noon or 12:30. Googling for NEC/RWA should find you the group's site.
Non-romance writers are welcome. First visit or two can be as a "guest" with a small door fee, but after that, membership in RWA is required before you can join the chapter or come to additional meetings. It's a great group though.
There's also a slightly smaller group that meets in Cumberland, RI, and is predominantly romance writers, but is not an official chapter of RWA, so national membership is not required. Google RIRW, and you'll find their website. Also a good group.
JD