The Downtown Guelph Webcam project is offline. I no longer live in Guelph and have no way to run the webcam.
The webcam ran from 2018-10-02 to 2019-08-30, roughly every half hour (bit of a bumpy start for the first few days as I figured out the correct webcam settings).
Download the 3.5 GB archive as a zip file which contains all 14003 photos. Note that they are licensed as CC BY-SA 4.0.
Thank you for your interest, and thank you, Guelph, for being so gosh-darn beautiful.