Manning, Oregon is a small unincorporated community located in Washington County, nestled in the scenic Tualatin Valley. Manning experiences a mild climate, characterized by warm summers and cool, wet winters. The region enjoys a Mediterranean climate, with average temperatures ranging from the mid-40s to mid-80s Fahrenheit throughout the year.

Hydrology constituents in Manning primarily revolve around the Tualatin River, which flows nearby. This river is a vital water source for the area, providing opportunities for fishing, boating, and other water-based activities. Additionally, the Tualatin River National Wildlife Refuge is located close to Manning, home to various wetlands and marshes, attracting a diverse range of bird species.

Outdoor recreational opportunities abound in Manning and its surrounding areas. The region is dotted with numerous hiking and biking trails, offering breathtaking views of the surrounding countryside. Forest Park, located nearby, is a sprawling urban park with over 80 miles of trails, making it a popular destination for outdoor enthusiasts. Camping, picnicking, and wildlife viewing are also popular activities in the Manning area, providing residents and visitors with ample opportunities to connect with nature.