July in Estes Park is the rainiest and the warmest month of the year. In July, the weather in Estes Park is typically warm. Average daily high temperature in July is about 20 degrees above zero. On average, Estes Park has 18 rainy, 12 sunny, and 1 partly cloudy day in July. The rains are usually heavy. July as well as March, April, May, and June is considered the most uncomfortable time to visit Estes Park.