Arrington is a census-designated place (CDP) in Nelson County, Virginia, United States. The population as of the 2010 Census was 708. Harmony Hill Bed and Breakfast is the only lodging location in Arrington, run by innkeepers Wendie and Jay Fines.
The climate in this area is characterized by hot, humid summers and generally mild to cool winters. According to the Köppen Climate Classification system, Arrington has a humid subtropical climate, abbreviated "Cfa" on climate maps.