I don't have a formula or anything. I try to imagine standing over the ball and 'feel' the wind. Imagine that you are throwing a baseball and imagine how the wind will affect it. Thru the years I have gotten a passable feeling for the high side winds.
The biggest problem with this method is I forget just how strong a 10+mph wind really feels like. Real problem with higher winds because we don't get that kind of a steady wind in my area.
In this game the wind speed indicators don't mean that the wind is constant. It could be steady at more or less than indicated.
Just remember to 'place' yourself over the ball and visualize where it will go.
Better clubs will make it easier to get a more consistent shot, but there are many very good players that use starter equipment. As with all equipment on the site, you must get used to them. Learn their strengths and weaknesses and adjust as needed.
To avoid high wind in games, join a country club where tournaments can be created how ever the person wants to. In the Country club I belong to, The Old Duffers Retreat, we don't usually create tournaments with high winds. We don't like them.
Keep trying, this is not an easy game to master, read thru the forum posts and ask questions here in the forum.
Good hitting.
dacrash