April in Minnetonka is the rainiest and the windiest month of the year. In April, the weather in Minnetonka is typically warm. Average daily high temperature in April is about 11 degrees above zero. On average, Minnetonka has 16 rainy, 5 sunny, 5 cloudy, and 4 partly cloudy days in April. The rains are usually heavy. April as well as January, March, and November is considered the most uncomfortable time to visit Minnetonka.