Thomasboro is a small village located in Champaign County, Illinois. The climate in Thomasboro is considered to be humid continental, characterized by warm summers and cold winters. Average temperatures range from the mid-80s°F in summer to the mid-20s°F in winter. Precipitation is evenly distributed throughout the year, with an average of around 40 inches annually.

Thomasboro is not directly located on a major water body, but it is situated near the Sangamon River and the Salt Fork River. These rivers offer opportunities for fishing, boating, and other water-based activities. The area is also known for its diverse wildlife and bird species, making it a popular spot for birdwatching.

There are several outdoor recreation opportunities in and around Thomasboro. The nearby Busey Woods Nature Preserve provides walking trails and a peaceful natural environment. Forest Glen Preserve, located a short drive away, offers hiking, fishing, camping, and horseback riding opportunities. The Champaign County Forest Preserve District also maintains several parks and recreational areas in the vicinity, providing options for picnicking, hiking, and nature exploration.