Since Japan has 4 seasons there is a lot of different ways to describe the weather!
In this video we introduce the basic ones.
Cloudy, sunny, rainy and Snowy.
You can usually use them as words or nouns depending on how you change the ending.
Basic way is:
Hare desu = sunny
Kumori desu = cloudy
Ame desu = rainy
Yuki desu = snowy