April in Walled Lake is the rainiest month of the year. In April, the weather in Walled Lake is typically warm. Average daily high temperature in April is about 12 degrees above zero. On average, Walled Lake has 16 rainy, 7 cloudy, 5 sunny, and 2 partly cloudy days in April. The rains are usually heavy. April as well as March, November, and December is considered the most uncomfortable time to visit Walled Lake.