As it turns out though, the continued hot weather has triggered the watermelon plants to start a second growth that has produced more watermelons. I think at least one more watermelon will mature to be harvested if the hot temperatures keeps up for the next several weeks.
Here are some pictures of the last Crimson Sweet melon picked. It weight 7.6 pounds and had a good red color.
The last Charleston Gray melon weighed 9 pounds.