Nowun,
At the beginning of the week it got to the mid 80's by the time we left the high was in the 50's lows at night near 40. This was the first time I visited in October. I have been there in Jan, Feb, March and April. it has snowed when I have been there. As Hi Yo will be the first to tell you.
I once camped in August. I will never do that again.