July in Scottsbluff is the hottest month of the year. In July, the weather in Scottsbluff is typically hot. Average daily high temperature in July is about 31 degrees above zero. On average, Scottsbluff has 17 sunny, 9 rainy, and 5 partly cloudy days in July. The rains are usually light. July as well as January, February, and December is considered the most uncomfortable time to visit Scottsbluff.