The Ouachita Mountains run from east-to-west for around 225 miles and peak out at an elevation of 2,800 feet. Because of this elevation, temperatures can get fairly chilly in the winter months.
The average temperature of the Ouachita Mountains ranges between 61 and 63 degrees Fahrenheit. This number is based on an average of the year-round temperature; daily temperatures can flucuate greatly depending on the time of year.
The Ouachita Mountains are generally cooler in the winter, particularly Janurary when the high averages just 52 while the low bottoms out at 27 degrees. The hottest time of year is in the summer months. On average, July and August are the hottest months of the year with an average high of 92 dergrees and an average low of 68.