A temporary brace system includes a temporary brace having a top portion coupleable to a building structure, a bottom portion that contacts the ground, and a middle portion interposed between the top and the bottom portions. The top portion has an adapter capable of receiving numerous attachment brackets so as to be coupleable to any building structure. The middle portion of the temporary brace includes cable struts that may be hingedly coupled to a first and a second support at a first end and may receive support cables. The middle portion may further include hoisting brackets to allow a connection point for hoisting and transporting the temporary brace system. The bottom portion may have a bolt coupler and an adjustment unit. The adjustment unit allows the first and the second support to be extended or shortened via a telescoping bracket.