I'd recommend using talc powder to check the wind randomly, if you don't already.
Something like https://shop.primos.com/p-521-wind-checker.aspx

Although I pick mine up from Walmart. Windicator, made by Hunter's Specialties (Cost $2.88) -- nearly half the price of Primos brand($4.99). Talc powder is talc powder so don't overpay if you choose to try it out.