I planted seeds of spaghetti squash in a pot and they are now showing yellow flowers that open in the day but close at night, but no squash is this normal ?
Certified GKH Gardening Expert
Here's an article about general growing conditions required by squash:
Are you certain the plants have had enough time to develop fruit? If they've had the opportunity to pollinate, it may be just a waiting game.
Just in case, I'm going to give you a link to a series of articles that should help: