In short, a 10 mph wind can have a significant impact on a golf shot. Here's a more detailed explanation:
The effects of wind on a golf shot are often underestimated. Even a relatively gentle breeze can add several yards to your shot, and strong wind can make even the best players in the world look like amateurs.
That said, there is no definitive answer to the question of how much wind affects a golf shot. It depends on too many variables, including the club you're using, your swing speed, the direction of the wind, and more.
What we can say for sure is that wind will always have some effect on your golf shot. So next time you're out on the course and there's a gusty breeze blowing, don't take it lightly!