April in Tomahawk is the rainiest month of the year. In April, the weather in Tomahawk is typically cold. Average daily high temperature in April is about 8 degrees above zero. On average, Tomahawk has 13 rainy, 10 cloudy, 5 sunny, and 2 partly cloudy days in April. The rains are usually heavy. April as well as January, March, October, and November is considered the most uncomfortable time to visit Tomahawk.