I have yellow squash plants. The blooms are dying off before the fruit has time to show. We had quite a bit of rain at the beginning of the season. Now we have temps in the 90's and little rain. I do use soaker hoses for watering. Hope you have some ideas.
Certified GKH Gardening Expert
This article will help: https://www.gardeningknowhow.com/edible/vegetables/squash/squash-blossoms-falling-off-vine.htm