We made a trip to Niagara Falls in November 2017 had a great time. I went many years ago when I was little but I totally forgot how amazing they were. If you have never been its worth the trip however, anything more than a few days is a bit much. Maybe during other times of the year there is more to do.
I was only there for about 3 days as you can see the weather was great for November. It was very windy at times but when the sun is out I am happy!