It was overcast, but not raining yet.

天阴沉沉的，但没在下雨。

youdao

It's not raining heavily, only spitting.

雨下得不大，只是小雨而已。

youdao

How they wished it were not raining then!

他们多么希望当时天不在下雨！

youdao

It has not stopped raining and officials say this is hampering efforts.

VOA: standard.2009.10.03

Literature, when it says "It is raining," is not looking out of the window, right?

文学上，当说到“天在下雨“时“,并未在同时往窗外看，是吧？

耶鲁公开课 - 文学理论导论课程节选

All this, provided it's not raining.

FORBES: Magazine Article

Not when there are rockets raining down on Sderot, and Israeli children have to take a deep breath and summon uncommon courage every time they board a bus or walk to school.

NPR: Transcript: Obama's Speech at AIPAC

It's not ideal but we obviously can ski even when it's raining.

CNN: Hirscher secures maiden World Cup slalom crown