In October, the weather in Ust-Ilych is typically freezing. Average daily high temperature in October is about 1 degree above zero. On average, Ust-Ilych has 12 rainy, 12 snowy, and 7 cloudy days in October. The rains are usually moderate. October as well as January, February, April, and May is considered the most uncomfortable time to visit Ust-Ilych.