July in King Salmon is the warmest month of the year. In July, the weather in King Salmon is typically warm. Average daily high temperature in July is about 15 degrees above zero. On average, King Salmon has 23 rainy, 5 cloudy, and 3 sunny days in July. The rains are usually moderate. July as well as April, May, June, and August is considered the most uncomfortable time to visit King Salmon.