Food Porn

The pollen in chile flowers becomes sterile at about 95 degrees. When this happens, the plant drops the flowers since they're of no use. During really hot stretches my plants do not set any pods. Growers in places like Texas get very little pod set in June and July because of the heat. You can try moving them to shade if they're in pots, if they're in the ground you'll just have to wait for the temperatures to drop.

Here's a good list of reason for flowers dropping:

1. Day temp too high >95F
2. Night temp too low <65F
3. Too much nitrogen fertilizer
4. Too much water
5. Low light levels (reduces fertility).
6. Very low humidity (reduces fertility)
7. Poor air circulation (air circulation contributes to pollination).
8. Lack of pollinating insects.
9. Size of pot
10. Too much mineral in feedwater.