As promised, here are some examples of weather idioms and slang in English!
Come rain or shine – This is when a person does something regularly.
When it rains, it pours – This means when something bad happens, other bad things happen too.
A storm is brewing – This is when a person is getting very mad and they might have an outburst.
Snowed under – This is when a person has too many things that they are doing.
Under weather – This is when someone is sick.
Cloud nine – When someone is very happy!