 I do recommend getting a cherry tomato because they will fruit even in actually quite a bit of heat. The other tomatoes won't, and you'll be able to get a better product that way. You can also plant a larger tomato. I don't know if I would go with the biggest ones, but your standard beefsteaks, you'll probably get some ripening in August, and that'll be fine. Your colder weather crops, just don't worry about peas.