Walker, Louisiana, located in Livingston Parish, experiences a humid subtropical climate, characterized by hot and humid summers and mild winters. Summers are typically long and hot, with average temperatures ranging from 75°F to 95°F (24°C to 35°C). Winters are generally short and mild, with average temperatures ranging from 40°F to 65°F (4°C to 18°C). Rainfall is relatively evenly distributed throughout the year, with the wettest months being May and June.

In terms of hydrology constituents, Walker is situated near the Tickfaw River and its tributaries, which provide a vital water source for the area. The river's rich ecosystem supports diverse wildlife and offers opportunities for fishing, boating, and canoeing.

Outdoor recreation opportunities abound in Walker. The nearby Tickfaw State Park is a popular destination for hiking, camping, and nature observation. The park features scenic trails that wind through cypress-tupelo swamps and bottomland hardwood forests. Additionally, the BREC North Park in Walker offers various recreational amenities, including playgrounds, sports fields, and walking paths.

Overall, with its pleasant climate, proximity to water bodies, and abundant outdoor recreation opportunities, Walker, Louisiana offers a welcoming environment for nature enthusiasts and outdoor adventurers.