There are many webcam sites these days, a good UK based site for railway fans is www.railcam.uk which is also good for spotting weather around the uk, with railcam you do have to register but without paying any subs you can see some of the cameras FOC.
Another open worldwide site worth viewing is https://worldcams.tv/ with some UK cameras and all free to view
Another open worldwide site worth viewing is https://worldcams.tv/ with some UK cameras and all free to view