My Shoulder Season Gear List includes extra warm gear for the colder temperatures and high winds typical of the High Sierras in late season. Although it is not yet winter late September and October usually bring colder temperatures down into the 20's. I have used this setup to hunker down for 16 hours at 12,280 feet during a strong snow storm and stayed warm, comfortable and safe.
Much of my gear is homemade (MYOG/Make Your Own Gear). If you are interested in the details check out the Custom Gear section here:
Cool Custom Gear.