Keystone Weather (Next 3 days): The snow forecast for Keystone is: A light covering of new snow, mostly falling on Tue night. Temperatures will be well below freezing (max -7°C on Tue afternoon, min -21°C on Wed night). Wind will be generally light.
Keystone Weather (Days 4-6): A light covering of new snow, mostly falling on Sat morning. Temperatures will be well below freezing (max -7°C on Sun afternoon, min -17°C on Fri night). Winds decreasing (fresh winds from the NW on Sat afternoon, light winds from the WNW by Sun night).