Weinmeister was a two-time All-City tackle in high school, and played end, fullback and tackle during a 4-year tenure at the University of Washington which was interrupted by four years of army service. He was scouted by New York Yankees (AAFC) head coach Ray Flaherty while playing fullback.
Professional career
Weinmeister turned professional in 1948 and played defensive tackle for the New York Yankees in the All-America Football Conference until 1949, and for the New York Giants from 1950 to 1953. During his final season in New York, he served as the team captain. In 1949, Weinmeister won second-team All-AAFC as a rookie followed by first-team All-AAFC honors, was voted All-NFL Choice for four consecutive years (1950–1953), and was selected to play in the NFL's Pro Bowl every year from 1950 to 1953.