Idioms are expressions. Quando associadas ao weather, elas podem te deixar confuse. Vamos conhecer some idioms associadas ao weather:
I’m under the weather = I’m not very good today (because I’m exhausted, stressed or sick).
Eg: Please don’t talk to me today. I’m under the weather.
Rain or shine = Seja com rain ou com sun, vai acontecer e pronto.
Eg: I will go to the picnic, rain or shine.
Which way the wind blows = How the situation will probably develop.
Eg: Não faça nada ainda. Espere para ver which way the wind blows.
It’s raining cats and dogs = It’s raining a lot!
Eg: Close the window , it’s raining cats and dogs!
Quer saber mais about these idioms? Access the originals http://www.urbandictionary.com/define.php?term=under%20the%20weather, http://www.ldoceonline.com/dictionary/come-rain-or-shine,
http://idioms.thefreedictionary.com/which+way+the+wind+blows and http://www.gingersoftware.com/content/phrases/raining-cats-dogs/#.Wdl94GJSzrk to expand your idiom culture.