You definitely need to fertilize if you haven't yet. Also the plants will need more water as the weather gets hotter.
Even everbearers don't bear all the time. They will bear in spurts, then grow more leaves before putting on more flowers. Not a bad idea to fertilize lightly between crops to keep them growing.
They're called that because they do bear more berries through summer, whereas June bearers have one big crop and are done.
