July in Port Alsworth is the warmest month of the year. In July, the weather in Port Alsworth is typically warm. Average daily high temperature in July is about 13 degrees above zero. On average, Port Alsworth has 24 rainy, 5 cloudy, and 2 sunny days in July. The rains are usually moderate. July as well as May, June, August, and September is considered the most uncomfortable time to visit Port Alsworth.