In October, the weather in King Salmon is typically cold. Average daily high temperature in October is about 5 degrees above zero. On average, King Salmon has 11 cloudy, 8 rainy, 6 partly cloudy, 5 sunny, and 1 snowy day in October. The rains are usually heavy. October as well as April, May, June, and July is considered the most uncomfortable time to visit King Salmon.