What happens if it rains above the boiling point of water?
Pressure and temperature are not all the same when going up vertically. See average temperature and pressure profiles.  The evaporation of any liquid has a pressure-dependent equilibrium point, see the phase diagram of water and Clausius-Clapeyron for a mathematical description of the equilibrium point.  

However, I assume that you mean with 212°F (100°C) the temperature at 1 bar level. Then water would tend to evaporate as it goes through the surrounding hot atmosphere. How quickly this happens depends on the temperature of the droplets and their size, i.e. the conditions of their formation.
If the free-fall speed is higher than the evaporation speed, then droplets would still hit the ground.

Of course this is a hypothetical scenario, as if the ground is at 100°C, then the atmospheric layers where droplets could form will be some 20-30°C colder (so minimum at 160°F). Which means they will not form in the first place.
Which means it would not rain if you assume the ground temperature is 212°F.