Assigned to Mine Division 17, "Speed" conducted coastal patrols off the coast of Algeria during the next two months. On 5 July, she departed Mers El Kébir, Algeria, and joined Vice Admiral H. Kent Hewitt's Western Naval Task Force for the invasion of Sicily. Steaming with ships of Task Force 85, she closed the Sicilian coast off Scoglitti on 10 July and served as a control ship during amphibious assaults.