Exo I believe the plant should be okay at 90F or a bit higher because I grow my D. burmannii outdoors full sun no shade and its really happy. 100F all the time? I don't have the experience to comment on that temp. Good luck!!! let us know how it goes.
If you get that temp. drop at night then I honestly think you should be fine! Like I said I grow mine outdoors. I am sure it must get hot at times. If anything goes wrong... don't worry I am sure I can send you another one or send you seeds....![]()