April in Salmon Arm is the windiest month of the year. In April, the weather in Salmon Arm is typically cold. Average daily high temperature in April is about 8 degrees above zero. On average, Salmon Arm has 15 rainy, 10 cloudy, 3 partly cloudy, and 2 sunny days in April. The rains are usually light. April as well as March and October is considered the most uncomfortable time to visit Salmon Arm.