January weather forecast in Fort Smith

January in Fort Smith is the coldest month of the year. In January, the weather in Fort Smith is typically cold. Average daily high temperature in January is about 7 degrees above zero. On average, Fort Smith has 16 sunny, 11 partly cloudy, and 4 rainy days in January. The rains are usually light. January as well as February, March, and December is considered the most uncomfortable time to visit Fort Smith.