Weidie was born in New Orleans, but spent most of his life on the Mississippi Gulf Coast. The Pascagoula High School graduate attended graduate school at Louisiana State University and was a graduate fellow at the Millsaps College Institute of Politics. He also was a participant in programs of the American Press Institute of Reston, Va.
Weidie, a 1963 Mississippi State political science graduate, was editor and publisher of the Ocean Springs Record from 1970 to 1990. During most of this time, he also was editor and publisher of the nearby Gautier Independent. Both publications are part of the national Gannett Co. chain. While an editor, he separately served the Mississippi Press Association as president, vice president, and treasurer.
In addition, he wrote a syndicated column called "The Political Scene" that was distributed to 17 daily and 27 weekly Mississippi papers.
In 1990, he sold his newspaper interests to become chief of staff in the Washington, D.C., office of newly elected Rep. Gene Taylor (D-Miss.).