April in Michigan City is the rainiest month of the year. In April, the weather in Michigan City is typically warm. Average daily high temperature in April is about 13 degrees above zero. On average, Michigan City has 13 rainy, 7 sunny, 6 partly cloudy, and 4 cloudy days in April. The rains are usually heavy. April as well as February, March, November, and December is considered the most uncomfortable time to visit Michigan City.