North Lima, Ohio, experiences a humid continental climate with warm summers and cold winters. Average high temperatures range from the mid-80s°F (29°C) in summer to the mid-30s°F (1°C) in winter. Precipitation is evenly distributed throughout the year, with an average annual rainfall of around 40 inches (1016 mm).

North Lima is located near the Mahoning River and several smaller creeks, contributing to its hydrology. Water quality is monitored, with key constituents including dissolved oxygen, pH, temperature, and turbidity.

Outdoor enthusiasts in North Lima can enjoy a range of recreational activities. Mill Creek MetroParks offers opportunities for hiking, biking, fishing, and golfing. The nearby Lake Milton State Park is perfect for boating, swimming, and picnicking. Additionally, the Mahoning Valley Trail provides a scenic route for walking, running, or biking through the countryside.