Sloane eventually returned to New York City and settled in the Merryall area of New Milford, Connecticut, where he began painting rustic landscapes in the tradition of the Hudson River School. In the 1950s, he began spending part of the year in Taos, New Mexico, where he painted western landscapes and particularly luminous depictions of the desert sky. In his career as a painter, he produced over 15,000 works. His fascination with the sky and weather led to commissions to paint works for the U.S. Air Force and the production of a number of illustrated works on meteorology and weather forecasting. Sloane is even credited with creating the first televised weather reporting network, by arranging for local farmers to call in reports to a New England broadcasting station.