This would be the cause.
It is so blazing hot and humid the only relief is in a pool. The air conditioner is running constantly and the house is comfortable but mid afternoon when the sun is at the hottest it can't keep up. High 90s here -- did I mention it is 75 with a light breeze is North Dakota.
Dan and Sam worked in the garden for a while tonight, got the tomatoes and the onions weeded. They have a huge job ahead of them. Dan said it is really overgrown after being gone for 4 days. Too bad I am missing all the fun!!