January weather forecast in North Sioux City

January in North Sioux City is the cloudiest and the most freezing month of the year. In January, the weather in North Sioux City is typically freezing. Average daily high temperature in January is about 4 degrees below zero. On average, North Sioux City has 16 cloudy, 7 partly cloudy, 5 sunny, and 3 snowy days in January. The snowfalls are usually light.