Not an expert but I think the plants will be ok and future buds and blossoms, too, but any pollen exposed to those temps would be affected and any blooms would drop as a result of not being successfully pollinated. At one month old that's probably not an issue yet. Those temps are much higher than ideal for tomato plant growth. Can you open an end to ventilate a bit during the day? How much longer are you going to keep growing them inside? Not sure where you are in Ohio, but the temps here in sw PA are going to be conducive to allowing plants to be outside after tonight's low of ~ 43.
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