Beautiful day. We left Safeway at 7 AM, not long after daybreak. Drive to the TH via Fort Klamath was 1:40. TH parking did not require a fee or pass.
We were on top a bit after 11 AM and back home at 4 PM, including a stop at Lake of the Woods. So, we could easily have left at 8 AM. TH temperature upon arrival was about 45 F, but it quickly warmed up into the high 60s.
The first 2.5 miles in are on a generally flat section of the PCT through the mostly open woods. The Union Peak trail then takes off to the SW, and the views begin to open up as the trail climbs. There is a trail to the summit, although with a bit of rock scramble near the top.
Consensus was to do this one again in 2013.