High temperature effects on high enthalpy flow over a double-wedge geometry are studied using a local thermodynamic equilibrium(LTE) based model for air. A finite volume based compressible flow solver is developed for this purpose. Effect of LTE based thermodynamic properties on the resulting flow field, shock distance and the type of shock interaction is studied. A parametric study is conducted by varying the upstream temperature, upstream Mach number and the wedge geometry individually. © 2019 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.