I understand about not flying a display routine in inclement weather, fog or low cloud (I am a former pilot). In this case, then F-35 squadron had done the fly

I understand about not flying a display routine in inclement weather, fog or low cloud (I am a former pilot). In this case, then F-35 squadron had done the flyover at the actual airshow in clear weather and were returning to their temporary airbase several hundred miles away. They could not land back there due to the light rain over the base and had to be diverted to a dry base elsewhere.