which way the wind blows
What appears probable or likely; how a certain course or situation is likely to develop. The politician is waiting to see which way the wind blows regarding public opinion on the issue before deciding how to take action. It looks like I might be considered for the job, but I'm waiting to see which way the wind blows.
way the wind blows, which
Also, how the wind blows. How matters stand, as in Let's see which way the wind blows before we decide, or He's going to find out how the wind blows concerning a promotion. This metaphoric term for the course of events first appeared in John Heywood's proverb collection of 1546.
which way the wind blows
how a situation is likely to develop.