Monitor is located alongside the
Wenatchee River in the lower reaches of the Wenatchee Valley, approximately 8 miles upstream from the river's mouth at the
Columbia River. The city of
Wenatchee, the largest in the region, is located at the confluence of the two rivers. The floor of the valley at Monitor is located at 715 feet above sea level, though rugged slopes rise immediately to the north of the community to a height of nearly 1,500 feet. Peaks over 2,400 feet are located within two miles to the south and west of the community.
U.S. Route 2 and
U.S. Route 97 pass concurrently through Monitor along the north side of the Wenatchee River. They connect the community with Wenatchee, 8 miles downstream, and to
Cashmere about 4 miles upstream. ==Climate==