Hulkberry and Sweet Afgani Delicious

Just read your diary and it looks like the early stages of a magnesium deficiency or lockout. I'm leaning more toward the lockout because your humidity is pretty high for this stage of life on top of your regular watering, which has now made the plant overwatered which is causing the lockout. Let her dry up and don't water the pot until it's light when you pick up, this should fix your issue.

I doubt the high humidity caused this although I suppose if combined with high temps it might. Check your EC and pH. I believe nute burn is most likely, but it could also be wind burn if you have a fan pointed directly on the affected areas.