For advanced systems, the unification of fiber as reinforcement and polymer as a matrix leads to the employment of the composite materials crucially. Specifically, in the aircraft, different structural areas are subjected to various levels of cyclic kinetic heating. Hence, in this research work, fatigue tests were conducted specifically at stress ratio of R = - 1 and at in-situ temperatures of – 40°C, 27°C and 90°C. Depending on the coefficient of thermal expansion (CTE) of individual constituents, the response in the stiffness degradation also varied. Inferior properties could be observed at 90 °C testing temperature because of the polymer softening. The study was also supported with the fracture surfaces of the respective tested samples and SEM fractographs.