In April, the weather in Moose Jaw is typically cold. Average daily high temperature in April is about 8 degrees above zero. On average, Moose Jaw has 14 cloudy, 7 rainy, 5 partly cloudy, and 4 sunny days in April. The rains are usually moderate. April as well as January, February, March, and June is considered the most uncomfortable time to visit Moose Jaw.