Previously, I've mentioned three heat waves we've had so far. Following the last heat wave a couple of weeks ago, we had below normal temperatures. For about three days it was unseasonably cold, especially at night. We were concerned how the combination of the heat wave/cold snap would affect the tomato plants.
Since that time we've had about 10 days of mild weather. It's been perfect for the tomato plants and they are all happily growing.