Abstract: A weather strip for hinged double doors, which is to be attached to a door fitting portion of an earlier-closed door of hinged double doors comprising a pair of left and right, earlier-closed and later-closed doors disposed in a rear portion or a side portion of a vehicle, which weather strip comprises: a seal portion which is brought into elastic contact with a side end of said later-closed door to thereby seal off an interior side of said vehicle from an exterior side of said vehicle; a flipper-like seal piece molded integrally with an upper end portion or to each of upper and lower end portions of said weather strip, so that a vehicle-interior-side wall surface of said seal piece is brought into elastic contact with a body-side weather strip attached to a circumferential edge of a body-side opening portion when said earlier-closed door is closed, and a vehicle-exterior-side wall surface of said seal piece is brought into elastic contact with a door-fitting-portion-side corner portion of said later-closed d