St. Hubert was born on December 29, 1951, in Port-au-Prince. He attended the Lycee Petion, and then the Lycee Toussaint Louverture. He became interested in art as a young boy, and started to paint in earnest in his early 20's, under the tutelage of his uncle Emmanuel Ducasse. He was also influenced by the works of the Saint Soleil group. His work is much sought after by collectors of Haitian art worldwide.