Can ferrets survive in cold weather?

Ferrets are usually kept indoors in a temperature controlled environment, and can only be housed outdoors in an an area where it NEVER gets above 80˚f / 26˚c, and then only if they remain out of direct sunlight. Ferrets cannot handle high temperatures and humidity well at all and are extremely susceptible to heatstroke. Generally, when temperatures exceed 80˚f (26˚c), a ferret will begin to suffer the effects of overheating and possible heatstroke.