That's not super warm, a swimming pool should be over 80-90f unless it's a lap-pool. I heard that lukewarm is less stressful than cold, and started doing it. My plants have been happy with it I think. I feel like I notice drooping when they get chilly winter tapwater, but haven't observed closely in a while.
it's warmer than cold, maybe a few degrees warmer than water during the summer. It would be between a swimming pool, and a bath that's not quite warm enough.
So within minutes of the lights coming on, and it's still 62f I say "ayy, wake up" and dunk them into a bucket of warmish water (I reverse feed them), and let them drain next to the air handler in the basement floor.