So we've had temps around mid 90's pretty consistently for almost a month now and going on for the foreseeable future. The forecast for 7/14 - 7/17 is 96, 96, 97, 98, clear and sunny all those days! I looked it up, historical temperature averages (not even accounting for global warming) the Chattanooga average high temperature is 90 degrees, every single day from June 30 straight through until Aug 11 (when it goes down to 89!)
What likes the heat:
Peppers, bell peppers and especially hot peppers
Squash - growing and fruiting like crazy!
by hearsay okra, but I've never grown any
Basil (except that it is under attack by Japanese beetles), but needs a lot of water in this weather
kale and swiss chard are going strong, but the kale is being really chewed up by something, I haven't figured out what
Corn - my third planting of corn is doing the best and looks just amazingly healthy, thick stalks, lots of deep green leaves
sage, rosemary, lavender, thyme
sweet potato - not planted yet, but the sprouts are growing fast
What isn't doing so well:
Tomatoes have pretty much shut down production. I have three plants in one bed and three in the other. The back one gets more afternoon shade than the front. In the spring the plants in the sunnier bed were doing better. Now that this weather has set in, the plants with more afternoon shade are doing better. The sunnier ones aren't producing and are really struggling with septoria. I know some of our Southern folks have talked about just pulling the tomatoes and planting new ones when the weather breaks. I'm starting to think about that. I'm not particularly growing heat resistant varieties, will have to try that.
Oregano: I would have thought it was one of those herbs like sage and lavender, but apparently not
Beans - I've been trying to fill in the spots where other stuff was pulled with beans, but having trouble getting them to sprout. The kidney beans and pole beans that were planted earlier are struggling with some fungal disease. The edamame beans planted earlier are an exception, though and are going to town. Harvest soon!