Yes, they do. If they can get inside ahead of rain, they will find a way in. And they did just that yesterday, ahead of today's rain predicted (by meteorologist and National Weather Service) rain - lots of rain. That is a good thing to remember, and also, check to see that none of your screens need repairs!! If you don't, the flies will drive you nuts.
"...flies gather in houses just before rain."
Yes, they do. If they can get inside ahead of rain, they will find a way in. And they did just that yesterday, ahead of today's rain predicted (by meteorologist and National Weather Service) rain - lots of rain. That is a good thing to remember, and also, check to see that none of your screens need repairs!! If you don't, the flies will drive you nuts.