August in East Wenatchee is the windiest month of the year. In August, the weather in East Wenatchee is typically warm. Average daily high temperature in August is about 26 degrees above zero. On average, East Wenatchee has 27 sunny, 3 partly cloudy, and 1 rainy day in August. August as well as June, July, and September is considered the most comfortable time to visit East Wenatchee.