Hey so just got back from my UHT thru! Nights were pretty chilly the first full week of August, getting down to 37° one night, but the rest staying between 40-43°. Wife and I referred to the first 25 miles from McKee Draw to Leidy as Mirkwood because it felt like it just did not. Stop. Going. On. Would start at Leidy if I ever do it again. We got hailed on day two and three. First bit of hail came at a spring between McKee and Leidy (which if you do decide to do the whole 104, I'll find the coordinates which really helps on the water carry). Second but of hail came while on Gabo pass. The thunderstorms were pretty intense, but mostly missed us until night 6 when it rained hard and thundered about as hard as I have ever heard it for about 5 hours.
Gabo pass still has lots of snow and is the only pass with as much snow (dead horse pass has some on the eastern side but it is right at the bottom and on a flat part), though I don't know how much will be there by early September. We decided to stick to the Highline and when we got to the snow, it was impossible. We decided to scramble up a couple hundred feet to a smaller part. We were not the only ones to do this as we saw multiple trekking pole marks and some pretty faint steps in the snow. A guy we played leap frog with that day watched us and thought it looked pretty sketchy so he took the left tail (that guess next to late Wilde) which he said the snow crossing wasn't terrible there as it was mostly flat. The snow had a good texture to it though and the crossing was actually pretty easy, just hella precarious, so you may want to get updated trail reports closer with a focus on Gabo.
Other than that though, most of the trail was fucking fantastic. The Rock Creek area, mostly the 1.1 mile trail after the creek crossing (going east to west) was a pick your own adventure, but also the mile or so of trail before the creek (though there were still Cairns for this section as well as pink ribbons every so often). All the fire damage and blow downs made the trail virtually none existent after the creek. It took us a bit of navigating and checking caltopo to make sure we were still headed in the right direction. If you can, would definitely suggest making it to the flat spot right before Rocky Sea Pass, no fire damage there if you plan on making camp around there.
We were also pretty grateful for having the ability to have a hot meal but that is a personal preference too. We took 8 days to do it and I just wasn't as hungry as I thought I would be.
Lots of marshes where the feet got wet multiple times per day. Socks were able to dry out the next day though (brought two to walk in and one to sleep in).
I am planning on doing a more detailed write up but just wanted to get these thoughts out quick. Let me know if you have any other questions!