The death of Cummings has garnered an outpouring of support, including from his alma mater.
The payment due date came shortly after students were notified of scholarship cancellations, prompting a Change.org petition to call for an extension.
"Today, like every day, we celebrate the excellence, power and necessity of the #HBCU experience!"
The address was the former FBI director's second public appearance since Trump fired him in May.
Rachel Dolezal, White Woman and Ousted NAACP Leader, Sued Historically Black Howard University for Discrimination
Dolezal studied art at the school.