Sanborn, Iowa is a small town located in O'Brien County, in the northwestern part of the state. The climate in Sanborn can be characterized as a humid continental climate, with hot summers and cold winters. Average temperatures range from the low 20s°F (-6°C) in winter to the mid-80s°F (29°C) in summer. Precipitation is evenly distributed throughout the year, with an annual average of around 30 inches (76 cm).

Hydrologically, Sanborn is situated in the Little Sioux River watershed. The Little Sioux River flows nearby and provides opportunities for fishing, kayaking, and canoeing. The river's cool, clear waters are home to various fish species, including smallmouth bass, trout, and catfish. Additionally, nature enthusiasts can explore the scenic riverbanks and enjoy hiking and bird-watching in the surrounding areas.

Sanborn offers outdoor recreation opportunities beyond the river as well. The town has several parks with amenities such as picnic areas, playgrounds, and walking trails. Golf enthusiasts can enjoy the nearby 9-hole golf course, while hunters and wildlife enthusiasts can explore the surrounding countryside. Overall, Sanborn provides a serene environment for outdoor activities, making it an attractive destination for nature lovers and those seeking a peaceful retreat.