He is in a fit of anger and will be himself in a moment.

他正在气头上， 过一会儿就好了。

《新英汉大辞典》

A fit of anger.

一阵怒气。

youdao

Now I know you are in and I have a fit of anger, you make me very nervous!

现在我才知道你是在和我赌气，你让我非常紧张！

youdao

Are we, in a fit of anger, going to throw away the legal and commercial advances of the past 300 years because most of us have recently lost a lot of money?

FORBES: Magazine Article

Then things really got serious and someone slashed every tire on my parents' Volvo, and once, in a fit of anger or grief, someone hurled a Birkenstock through one of our bay windows.

NPR: Chapter 1