In October, the weather in Whitehorse is typically cold. Average daily high temperature in October is about 1 degree above zero. On average, Whitehorse has 22 cloudy, 3 rainy, 3 sunny, 2 snowy, and 1 partly cloudy day in October. The rains are usually light. October as well as January, February, April, and July is considered the most uncomfortable time to visit Whitehorse.