Michigan state park campsites.
Showers are (usually) horrible and too cold (admittedly, improvements might be coming).
Constantly sweating when not in a (Great) lake because August is the only month when the lake water won't give you hypothermia.
Might have to suffer a thunderstorm also.
No-shirt not an option or the mosquitos will get ya'! (And you'll sweat on everything else.)
If not for me, then definitely for my kids.
Alternative: Yard work at home -- sweat resistance / cooling, stain resistance (how about gasoline or two-cycle oil?)... If it could last even one whole day, that'd be progress.