Mesa, Washington is a small town located in Franklin County, in the southeastern part of the state. The climate in Mesa is considered semi-arid, with hot, dry summers and mild winters. Summers can see temperatures reaching the high 90s, while winter temperatures average in the 30s. Precipitation is minimal, with most rainfall occurring during the winter months.

As for hydrology constituents, Mesa is situated near the Columbia River, which provides a source of water for the region's agriculture. The river also offers opportunities for boating, fishing, and other water-related activities.

Outdoor recreation opportunities in Mesa and the surrounding area are abundant. The region is known for its vast open spaces and stunning natural landscapes. Hiking and camping enthusiasts can explore nearby parks and trails, such as the Juniper Dunes Wilderness or the Saddle Mountains. The area is also popular for off-roading, with numerous trails for ATV and dirt bike enthusiasts. Additionally, Mesa is located near the Hanford Reach National Monument, a protected area offering opportunities for wildlife viewing, birdwatching, and more.