Are those tomatoes in containers? It seems I see one in the upper photo. Depending on the soil mix you have them in, it can dry out quickly, but they will recover quickly when watered. But they also can be in soil that doesn't drain, and this is worse, as it is hard to get anything to recover from excessive rain. Many years ago we had a summer when almost all of my tomatoes were killed by constant rains, and they looked like that, at first. (I felt for the farmers, as entire fields of many types of crops were lost). That's when I started planting some tomatoes in upside-down buckets, and made sure that I added a bunch of perlite, for drainage, in case we ever had a summer like that. I learned quickly, that those things dry out FAST, but, as I said, the plants came back fast when watered. That was when I learned about drip irrigation! I've switched to Earthboxes, and other SIPs, to make sure I always have tomatoes!