Know which way the wind blows

Meaning

To be aware of current trends, public opinion, or future developments. It means you understand the changing circumstances of a situation.

Observant, cautious

Used in a sentence

• He is smart enough to know which way the wind blows before he makes a political statement.
• If you want to keep your job, you had better learn which way the wind blows around here.
• She stays quiet until she knows which way the wind blows in the boardroom.