Gilboa, Ohio is located in the northern part of the state and experiences a humid continental climate with warm summers and cold winters. The region has a diverse hydrology system with several waterways, including the Blanchard River and Eagle Creek, running through the area. These waterways provide opportunities for fishing, kayaking, and other outdoor water activities. Additionally, the nearby Ottawa National Wildlife Refuge offers opportunities for wildlife viewing and hiking. However, visitors should be cautious of potential flooding in the area during heavy rain events. Water quality concerns in the region include nutrient pollution from agricultural runoff, which can lead to harmful algal blooms in local waterways.