Weldon graduated from William Penn High School in New Castle, Delaware and briefly attended the University of Maryland.

[1][2] In September 2008, Delegate Weldon announced that he was changing his registration from Republican to unaffiliated and would not seek reelection in 2010 for the term beginning in 2011.

[3] Delegate Weldon, in the House of Delegates from January 8, 2003, to December 17, 2009, was a member of the House Health and Government Operations Committee and the government operations and public health/long-term care subcommittees.

In June 2009, Delegate Weldon raised concern with a few people in the community by supporting convicted sex offender Samn Huffer, who was directing a local theater production, "Annie," performed by The Fredericktowne Players.

Huffer had fulfilled his sentence and all obligations to the state, and also had previously directed another show with children in the cast.