Thanks for your comments.
I'm going to do this trip next Saturday (assuming the forest fire is resolved and air quality is decent).
It's going to be hot, but I don't want to wait until September when it's not all that much cooler anyways. Plus I want more daylight hours, more predictable weather, and I'm hoping that there'll be less people due to this fire... maybe.
I plan to ride thru Yosemite and take 120 to Mono Lake. On the way back, I want to stop in Yosemite NP valley to do more sightseeing, grab something to eat, and detour to Glacier Point (if time permits).
Currently thinking:
7AM leave bay area
12PM arrive at Mono Lake
3PM arrive at Yosemite valley
5PM leave Yosemite NP
8PM back in bay area
If I get to Mono Lake earlier than 12PM, I'm going to give 120 west of the lake a try. Hopefully, I'll be able to take some decent pictures of my first extended MC ride. Really just want to see the lake in person and I don't have very high expectations.