A friend and I went up the Whitney Trail Mon night to Trail Camp, summitted Tues and hiked back out. Keychain thermo said high 20s at night, @ 12,000'. Lakes weren't frozen over yet and streams everywhere had enough for filtering. Some ice, snow on the way to camp, nothing sturdy boots couldn't handle. 99 switchbacks all the way to the peak has hard, packed, squeaky snow, which again, no problem for real boots.
Cables:
From summit looking down:
Trail Camp:
Trail Camp:
From the notch:
Back of the spires, on the way to the summit from notch:
