Thread: It's on the(a) table.

Originally Posted by Оля

I regret to state a fact that there is a example in Lingvo:

They go out in all weathers. — Они выходят в любую погоду.

Well, it's possible, and still used in some places as an idiom, but using "in all weather" is more common, and "in all kinds/sorts/types of weather" even more so.