It was 117 in my car this afternoon. Smoked one of my 'lil CAO glove box specials that had been kept there for a week or so.
Smoked well, so I suppose 117 degrees to 70 degrees with 20-40% humidity doesn't hurt these too much.
Cigarillos, by nature, are just throw down smokes. Quickies to get through a short break for me. If I have more then a few tins, I put them in a humidor till I need one.