Dreaming of people who predict the future means that a person nearby is betraying you. You must be alert and be careful.
Dream dictionary: Clairvoyant dream meanings
…Dreaming of being a clairvoyant and seeing yourself in the future, denotes signal changes in your present occupation, followed by a series of unhappy conflicts with designing people. Dreaming of visiting a clairvoyant, foretells unprosperous commercial states and unhappy unions….