The city has a humid subtropical climate with hot summers and cool winters. It receives an average of 52 inches of rainfall per year, with the wettest months being March and November. The area is home to several hydrological constituents, including the Chattanooga River and Chickamauga Creek, which provide recreational opportunities such as boating and fishing. Additional outdoor activities in the area include hiking, biking, and horseback riding at the Chickamauga and Chattanooga National Military Park. The park also offers historical tours and camping facilities. Overall, Fort Oglethorpe offers a variety of outdoor experiences for visitors to enjoy.
Fort-Oglethorpe receives approximately 1315mm of rain per year, with humidity levels near 85% and air temperatures averaging around 15°C. Fort-Oglethorpe has a plant hardyness factor of 7, meaning plants and agriculture in this region tend to thrive during the non-winter months.