Weldon is a Wiradjuri person.[2] From a young age, she developed a strong passion and commitment to bringing about positive change for Aboriginal people and communities. She attended public school in Redfern, Sydney.
Weldon is currently the Deputy Chair of the Metropolitan Local Aboriginal Land Council, Deputy Chair of the New South Wales Australia Day Council,[3] a board member of Domestic Violence NSW and a former board member of Redfern Jarjum College.[4] She has spent more than 20 years working in key First Nations and government organisations across the country.
In 2016, she was short-listed for the Queensland Literary Awards, David Unaipon Award for her unpublished manuscript 67 Days and was awarded the 2017 Allen & Unwin Faber Writing Academy scholarship.[5]Sixty-Seven Days was published by Michael Joseph in 2022. Sydney Morning Herald reviewer, Juliette Hughes, claimed the book was more than a romance and that it "should be on every book club’s list".[6]
Weldon was awarded the 2019 NSW Volunteer of the Year for the South Sydney Region[8] and she was awarded the 2022 Cancer Institute NSW Aboriginal Woman of the Year Award.[9] She was appointed a Member of the Order of Australia in the 2022 Queen's Birthday Honours for her work with the Indigenous community of New South Wales.[10]