Pre-emptive because this keeps coming up:

The Owl House is currently airing on the Disney Channel as well as DisneyXD. It is available via their official streaming platform on DisneyNOW, although you will need to log in with your TV provider to access all the episodes. It will be on Disney+ on October 30. You can watch it with Hulu's Live TV subscription or purchase individual episodes or season passes from Amazon, Google Play, iTunes, YouTubeTV, or other similar services.

Other websites which have it available illegally are NOT permitted here. On an ethical level, the creators deserve compensation for their efforts. On a practical level, watching it legally is the best way to show support for the show and convince Disney to continue to produce it. And on a somewhat selfish level, if this subreddit condoned piracy it would be subject to being shut down. PROVIDING ILLEGAL LINKS OR ASKING FOR THEM IS SUBJECT TO MODERATION, UP TO AND INCLUDING A BAN.