A Vulcan lute on Aldea. The Vulcan lute (sometimes referred to as Vulcan harp, Vulcan lyre, or Vulcan Lyrette) was a twelve-stringed instrument, played on the planet Vulcan, that was tuned on a diatonic scale and noted to be very soothing.
Keystone Average Weather. 1  The highest monthly average temperature in Keystone for July is 54 degrees. 2  The lowest monthly average temperature in Keystone for December is 14 degrees.  The most monthly precipitation in Keystone occurs in January with 0 inches.
7-Day Weather Forecast for Keystone. What's the weather forecast for Keystone this week? Check out the long-range weather forecast for Keystone, including temperature, predicted snowfall and wind details at the summit and base throughout the day for the next week. Tab over to overview or Hour by Hour for alternative views of the Keystone weather forecast. Summit | 11624ft. Base | 9278ft.