Mcnary, Oregon is a small town located in Umatilla County in the northeastern part of the state. The area experiences a semi-arid climate with hot, dry summers and cold winters. Summers are typically sunny and hot, with temperatures often reaching above 90°F (32°C), while winters are cold, with temperatures dropping below freezing and occasional snowfall.

The hydrology of Mcnary is heavily influenced by the nearby Columbia River, which provides ample opportunities for outdoor recreation. The river is known for its exceptional fishing, particularly for salmon, steelhead, and sturgeon. Boating, kayaking, and paddleboarding are also popular activities on the river.

Additionally, Mcnary is surrounded by natural beauty, with nearby Umatilla National Forest offering a wealth of outdoor recreation opportunities. Visitors can explore miles of hiking and biking trails, go camping, fishing, or enjoy wildlife viewing.

Overall, Mcnary, Oregon provides a diverse outdoor playground for nature enthusiasts, with its mild climate, access to the Columbia River, and proximity to Umatilla National Forest.