April in Wisconsin Rapids is the rainiest month of the year. In April, the weather in Wisconsin Rapids is typically cold. Average daily high temperature in April is about 9 degrees above zero. On average, Wisconsin Rapids has 16 rainy, 6 cloudy, 5 sunny, and 3 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 Wisconsin Rapids.