David Devall (born 1931) is a Canadian retired broadcaster and meteorologist. He served as the chief forecaster at CFTO-TV in Toronto for more than 48 years beginning in 1961, and was recognized as having had the "longest career as a weather forecaster" by Guinness World Records and the World Records Academy upon his retirement on April 3, 2009.[1][2] Devall was also a recipient of the RTDNA Canada's lifetime achievement award in 2010.[3]