I used the Trip Planner feature of weatherunderground.com to get historical weather data for each of our ports on CANADA. Obviously, while the historical data can't predict the actual weather in each port this October, it gives a pretty good idea of the weather we'll most likely encounter. Most likely it will be cool or cold until we reach Charleston. Here's the data for each port:

Montreal , Quebec City , Saguenay , Charlottetown , Sydney , Halifax , Bar Harbor , Gloucester , New York City , Charleston , Savannah , Ft. Lauderdale .

Dave