我的心情就像外面的天气一样，时好时坏，帮忙翻译成英语！ 谢了

My feeling like the weather outside, which is when the good and bad (volatile).
"时好时坏"when the good and bad
"Volatile"是“易变的”意思。也可解释为“阴晴不定”。
也可为"which is volatile."

My feeling is unpredictable just like the weather

my mood just like the weather,which is good or bad from time to time.

My mood is like the weather outside,sometimes good,sometimes bad.