Langmuir monolayers of phospholipids at air-water interfaces are ubiquitous systems that exhibit unique two-dimensional structural and mechanical properties upon lateral compression and expansion. Pulmonary surfactant (PS) monolayers line the alveolar air-liquid interface where they dynamically regulate surface tension during breathing cycles, a critical function for maintaining normal respiratory mechanics. Lack or disintegration of LS leads to respiratory diseases such as respiratory distress syndrome (RDS) in premature infants and acute respiratory distress syndrome (ARDS) in Covid -19 patients. Monolayer behavior during compression-expansion cycles can be characterized across different temperatures using complementary experimental techniques including Langmuir-Wilhelmy balance measurements and constrained bubble surfactometry (CBS), each providing unique insights into interfacial dynamics. However, while the accuracy of experimental measurements is limited by several factors, computer simulations are constrained by the lack of accurate force fields and the small length and time scales involved. Here, we develop a novel coarse-grained computational approach based on dissipative particle dynamics (DPD) to study the temperature-dependent interfacial and mechanical properties of phospholipid monolayers and bilayers.