"Herndon" remained off the Normandy beaches providing fire support, screening troopships, and antisubmarine patrol until 19 June, when she served as a screen for Allied landings at Baie de la Seine. Further screening duties followed until 11 July, when she reported to Belfast for training as an escort in the Mediterranean. Operation Anvil was the Allies' next major operation. "Herndon" was part of the joint task force screening aircraft carriers on 16 August when the invasion of southern France was begun.