Tomato plants - willl they survive !

Hi,  I have 4 trays of different types of tomato plants growing. I have kept them inside th ehouse and they were all grwoing really weel, then I decided to put them in the potting shed on Saturday as it has been really warm in there but sat night and sun daytime were cold and they seem to have withered up a little.

I have brought them back inside the house now - does anyone know if they are likely to survive ?  Would re-potting them help ? 

They've had a bit of a check but they will be fine as long as they don't get any actual frost. The potting shed should be OK if it is light enough, unless you are in a cold part of the country.