Cloudy
The sun is being blocked by a rain cloud, making it cloudy.
You look up at the sky, trying to find the sun, but it's so cloudy that you can't even find where the sun should be.
None
くも
None
Remember 雲? It means "cloud" and has the same reading as "cloudy," making them both くも.
If it's cloudy there are clouds, so if you can read one, you can read the other!