Born and raised near Chicago, Illinois, Dan Weinberg received his B.A. at Hartwick College, his M.A. at California Polytechnic State University, and his M.A. and Ph.D. in clinical psychology at the Fielding Institute. He spent most of his career as an individual and group mental health therapist. Weinberg also spent two years in the Peace Corps, serving in Kenya.
Upon moving to Montana in 2000, Weinberg organized the Wave in Whitefish. He did much of the fundraising and planning for the aquatic and fitness center which opened in 2005. From 2005 to 2009, Weinberg served as Montana State Senator, chairing the Senate Public Health committee.
In 2008, he founded the Montana Innocence Project, along with its first Executive Director, Jessie McQuillan. He continues to happily serve on its board.