She previously served as a judge of the Montgomery County Court of Common Pleas from 2014 to 2025.

From 2003 to 2006, she was a litigation associate, where she focused on criminal defense practice at Frank, Rosen, Snyder and Moss in Elkins Park, Pennsylvania.

[3] From 2006 to 2013, she worked as a senior counsel at Wisler Pearlstine, LLP in Blue Bell, Pennsylvania,[2] She was an Abington Township commissioner from 2004 to 2008.

President Biden nominated Weilheimer to the seat vacated by Judge Gene E. K. Pratter, who died on May 17, 2024.

[6] During her confirmation hearing, Senator John Neely Kennedy questioned her about a case of a nursing home assistant who sexually assaulted an elderly, incapacitated woman with Alzheimer's disease, whom Weilheimer sentenced to eleven months for the crime following a plea deal.[7][relevant?]