Are Weimaraners good with cats?

Yes, Weimaraners are generally good with cats, but it depends on each dog’s temperament, socialization, and household dynamics. 

Weimaraners have an extremely high prey drive since they were bred for tracking and hunting and, as such, do not have the best track record with cats or other small animals in the home. Of course, each dog (and cat) has their own preferences and temperament, but you can feel fairly confident your Weimaraner, if properly socialized to your cat and/or introduced at a young age, could get along well.