Tomatoes are a warm loving crop. With the temperatures dropping below 50 degrees starting Sunday evening, and continuing into next week. You have a few choices as how to save those last tomatoes that are still green on the vine. Plus, We are also getting closer to our first frost date of October 11-24th.
If you planted in containers, you can move them into the garage in the evening before the sun sets, and bring them back out in the morning as the sun rises.
If they are in the garden, you can cover them with floating row covers or old sheets before the sun sets and remove the covers in the morning after the sun has come up.
If your tomato plants only have a few good sized green or starting to turn red tomatoes left on the vines, you can remove them. Place in wrapped newspaper and lay in a single layer in a box or cookie sheet and place out of direct light in a cool place. Remember to check on them daily as they continue to ripen. They will not have the great flavor of a vine ripened just picked tomato, but they are still better than store purchased.
If your plants have smaller unripe tomatoes or still has flowers on the plant, these will not produce any viable fruit and can be cut off or removed from the plant.
This has been a very trying growing season. But, We always have next year.
Happy Gardening !!