An automotive weatherstrip mounted along a peripheral flange of a door opening of an automobile is provided. The weatherstrip includes a trim part having a generally U-shaped cross-section to be held by a peripheral flange of the door opening and a hollow seal part for contacting a peripheral edge of a door, protruding generally perpendicular from one side of said trim part. The trim part, at a corner portion of the peripheral flange of the door opening, is curvedly formed by cutting away a portion of the hollow seal part. A molded hollow seal part, at the corner portion, is integrally molded with the trim part and has an outer configuration substantially similar to that of the hollow seal part. The molded hollow seal part is circumferentially offset from the curved trim part so as to extend along an upper side and a vertical side of the door opening. A generally triangular covering part is provided to cover a side surface of the trim part from which the hollow seal part is cut away and is integrally molded with the molded hollow seal part.