In Freeport, right on Rt 1 is Cottonweeds Quilt Shop.
If you are driving (which I assume you are), you will drive through New Hampshire. Keepsake Quilting in Center Harbor is well worth the trip.
Vermont Country Store has two locations: Rockingham and Weston. Both are awesome. Can be pricey, but there are items carried that no other store seems to carry. Unfortunately they don't carry fabric and the only quilts they have are "commerically produced". I actually purchased my dry iron from them...lasted about a year and then died. VCS offers lots of food samples: cheeses, fudge, cracker and cookies, dips...bring your appetite. The store in Weston has a restaurant next door. I have never gone to it, but have heard folks say it is very good.
Enjoy your trip! Any season here in New England can be awesome...Winter, Spring, Summer, Fall and Mud (yup, we have 5 seasons up here). In Maine, there are only 3 seasons: Almost winter, Winter, and Still winter! LOL