Tow, Texas is a small unincorporated community located in Llano County. The climate in Tow is considered to be a humid subtropical climate characterized by hot summers and mild winters. Summers are typically hot with temperatures often reaching the 90s (Fahrenheit), while winters are relatively mild with temperatures averaging in the 50s. Rainfall is spread evenly throughout the year, with the wettest months occurring in spring.

Tow is surrounded by the picturesque Lake Buchanan, one of the largest lakes in Texas. The lake offers numerous outdoor recreational opportunities such as boating, fishing, swimming, and camping. Anglers can find an abundance of fish species in the lake, including largemouth bass, catfish, and white bass. Additionally, the area is known for its scenic hiking and biking trails, providing opportunities for outdoor enthusiasts to explore the natural beauty of the region.

The hydrology constituents in Tow are primarily focused on Lake Buchanan and the Colorado River, which serves as the lake's source. The lake is an important water source for the region, providing water supply, irrigation, and recreational activities.