Good. Probably best to protect it if you can.
My corn planting area is too large to even think about covers. I plant and it is on its own. Seldom lose any even if we do get a freeze.
Corn is a monocot, meaning it sends up new growth from the center. It can have the leaves freeze, yet still send up growth and do fine. It takes a really cold freeze to kill it. Not saying it can't be killed, but I have many times seen the leaves freeze and it just sends out new ones and keeps on growing.
Gardening at 5000 feet elevation, zone 4/5 Northern Utah, Frost free from May 25 to September 8 +/-