Hi blotter. Congratulations on the booking. Canada/New England is my favorite itinerary, and we also live in New England.
You've selected a good time to visit. Average temperatures are in the 60s (F) in Boston and high 50s in Quebec City. Seas can vary, but be assured that your Captain will steer clear of any very rough weather that might be in the area. That's not to say it won't be a little bumpy at times, but certainly nothing too uncomfortable. (And, I've always found that a green apple works well for seasickness, if needed -- and I've needed it just once in five Canada/NE cruises, and that was just for a few hours.)
This link (click HERE
) will bring you to an overview of the region that I wrote a few years ago. Very little has changed since then.
I'm happy to answer any questions.