[Miniata]

I'll wash down to 35-40°F (I've had a sheet of ice form over the whole car in the past when it dropped below freezing before I was finished) but usually don't polish or wax if it is below 50-55°F. Many waxes and polishes will still work a little colder than that, but application and removal usually get more difficult the colder it gets. Just keep an eye on the temperature and make sure you can finish before it drops down too cold in the evening.