Keithville is a small unincorporated community located in Caddo Parish, Louisiana. The climate in Keithville is classified as humid subtropical, characterized by hot and humid summers and mild winters. Summers are often long and can have temperatures reaching the 90s°F, while winters are generally mild with temperatures rarely dropping below freezing.

Keithville is situated near several bodies of water, including the Red River and Cross Lake. These hydrological features provide opportunities for various outdoor recreational activities such as fishing, boating, and kayaking. The Red River is particularly renowned for its diverse fish population, including bass, catfish, and crappie.

Additionally, the area surrounding Keithville is dotted with lush forests and nature reserves, offering opportunities for hiking, camping, and wildlife observation. Nearby parks like the Walter B. Jacobs Memorial Nature Park and the Red River National Wildlife Refuge provide visitors with a chance to explore the natural beauty of the region.

Overall, Keithville offers a favorable climate for outdoor activities throughout the year, and its proximity to water bodies and natural areas make it an appealing destination for nature enthusiasts and outdoor lovers.