Yes, high winds, no wind, or storms can affect operations.
Yes, the weather significantly impacts the Royal Roermond Windmill's operation. The mill requires adequate wind to turn its sails and grind grain; therefore, days with no wind will see the mill inactive. Conversely, very high winds or stormy weather can be dangerous and lead to a temporary halt in operation to prevent damage. It's best to check weather forecasts if you specifically wish to see the mill in action.