When I recently visited Niagara Falls, another visitor suggested sticking around for the incredible night display including the colorful lights from the Falls and the fireworks above. You might be limited in terms of the time frame to see the spectacular view in person, but you can check out the webcam here day and night:

https://www.earthcam.com/world/canada/niagarafalls/thefalls/?cam=niagarafalls2

I’ll be sharing a more extensive article soon on my recent experience at the Falls.