How should I write this sentence in grammatically correct way? [closed]
You're asking about specific temperature and pressure, with "in your room" identifying which temperature and pressure you're talking about, so it should "Do you know what the temperature and humidity in your room are?" Inverting "in your room" and "are" would imply that there's one temperature, and it takes on different values in different locations, rather than there being different temperatures for different locations.