I just walked in the door from boating on the mighty shoe-shine and here is this post.
The main Shoshone below Buffalo Bill Reservoir is of course dam controlled. It has reliable flows well into September, usually until all crop harvests are done in early October. Right now we are experiencing above average flows of around 1,400 cfs. We should see good flows though the month.
right around town, we have a couple sections of class II water. direct;y above the class II is the classic class IV section outlined in the bible, (WWSR). it is still a little juicy up there now but really fun and can be done in either a play boat or river runner. Above this is a short class III section accessed through the infamous "culvert" also above this section and extending to just below the dam is a great class IV "creek" section, which has lower flows than the main runs below as most of the water is piped underground to feed turbines down stream.
Don't count on sitting in hot springs. They are right along the canyon run, but are privately owned. You can actually paddle into some upstream and warm your hands but in recent years the springs have gotten cooler, about 99 degrees.
Most boaters work during the day, but there are a few around, (myself included) who are sometimes available mid-day. As Luke mentioned, Ed Conning boats a lot. Also, they best way to communicate is the local message board as Luke mentioned.
You can contact me at Gradient Sports, my name is Andy.
see you up here,