As of October 2015, a fair rate for cat sitting would be about $9.50 per hour. That is a base rate that most people charge for watching a cat, but it might be higher depending on any other services that the cat might need.
Several factors determine what cat sitters charge for their service, including the amount of care, geographical location, additional responsibilities and experience. Rates may be higher if there is more than one cat or if the cat needs grooming. Cat sitters in big cities and suburbs tend to have higher rates than sitters in rural areas. Also, a sitter might charge more if they have a lot of experience, special certifications or licensing.