Waldo, Ohio is a small village located in Marion County. The climate in Waldo is characterized by four distinct seasons. Summers are warm and humid, with average temperatures ranging from the mid-70s to mid-80s Fahrenheit. Winters are relatively cold, with temperatures dropping to the 20s and occasional snowfall.

The village is primarily situated in the Scioto River watershed, surrounded by streams and small rivers. Hydrological constituents in the area include the Scioto River, Whetstone Creek, and other water bodies, providing ample opportunities for water-based activities such as fishing, boating, and kayaking. The region's hydrology also supports a diverse range of flora and fauna, making it a haven for nature enthusiasts.

Outdoor recreation opportunities abound in Waldo and its surrounding areas. The Marion Tallgrass Trail is a popular destination, offering a scenic hike or bike ride along an abandoned railroad corridor. For those seeking more adrenaline-pumping activities, the nearby Delaware State Park provides opportunities for swimming, camping, hiking, and even hunting.

Overall, Waldo, Ohio boasts a pleasant climate, diverse hydrology, and numerous outdoor recreation opportunities that cater to a variety of interests.