Less eggs in the summer

[Buckguy20]

Mine usually shut down when it gets hot but I am still getting lots of eggs even though it has over 100 here for over three straight weeks.

 

[dbounds10]

I have 6 girls all are 18 weeks old. My 2 BR's have red combs and waddles so I was hoping they would start to lay soon. With the heat above 100 every day, will they start to lay or will I end up having to wait til fall??