Sometimes went I leave for the range it is dead calm but when I get there 25 minutes later there is wind
Other times when it is windy at home and I go to the range to shoot clay and when I get there it is dead calm
Now when I go to sight or work up a load, I take my 20 and/or a .22 so my trip is partly worth while.
Other times when I just know that the conditions are perfect at the range I have a honey do list that keeps me from shooting.