The present study aims to identify a potential shift in the distribution of Lasius platythorax Seifert, 1991, in the context of future climate change using ecological and geographic modeling methods. Climate models from the WorldClim database were used for the years 1970–2000, 2061–2080, and 2081–2100. Three out of four modeled scenarios predict a decrease in available L. platythorax habitat by 2100. One scenario predicts an increase in available habitat, where atmospheric temperature increases by a maximum of 4.4 degrees Celsius by 2100. This result is thought to be due to a decrease in limiting factors associated with increased air temperature. During the study, an updated map of known L. platythorax distribution was also created.