Despite various new weathercasters joining the station, Devall remained the chief weather presenter at CFTO until his retirement, and also appeared daily on co-owned CTV Newsnet to present the national weather forecast. His funny antics have made him popular with Toronto viewers. During his early years at the station, he presented the weather forecast from behind a clear acrylic glass weather map, which necessitated writing backwards with a grease pencil. After electronically generated weather maps were introduced, he continued the tradition with a single daily weather word.