Mount Aix is a 7,766-foot (2,367 m) mountain summit in Yakima County of Washington state.

[1] Mount Aix is situated east of the crest of the Cascade Range, southeast of Bumping Lake, north of Bismarck Peak, and northwest of Rimrock Lake.

Most weather fronts originating in the Pacific Ocean travel northeast toward the Cascade Mountains.

As fronts approach, they are forced upward by the peaks of the Cascade Range (orographic lift), causing them to drop their moisture in the form of rain or snow onto the Cascades.

During winter months, weather is usually cloudy, but due to high pressure systems over the Pacific Ocean that intensify during summer months, there is often little or no cloud cover during the summer.