Tomato plants problems
Tomatoes are very cold sensitive. They don't like temperatures below 50 degrees, so I think that's the damage you are seeing. We've had just enough cold to show a little damage, but my tomatoes are actually still producing. We are on borrowed time, though. Tomato season is pretty much over. You can harvest even the green ones if we are due for a big freeze and bring them inside to ripen.
Let me know if you have further questions.