These weather forecast sheets are generated by DMI and made available by DMIs good old Servlet application program interface. They have a nice graphics layout and are free to use according to their terms of use.

DMI weather forecast for Copenhagen.

DMI weather forecast for Aalborg.

DMI weather forecast for Kolding.

FCOO Marine Forecast.

The FCOO Marine Forecast wind and weather forecast for boating works well on desktop computers and smartphones.

Screenshot of wind forecast by FCOO Marine Forecast. Wind speed is indicated by color and direction is indicated by arrows.
Screenshot of wind forecast by FCOO Marine Forecast. Wind speed is indicated by color and direction is indicated by arrows.

Windy.

The Windy wind and weather forecast service has a modern JavaScript application, that shows a nice animation of wind speed and wind direction for Denmark and the rest of the world. You can also visit the website of Windy or install their very neat and highly configurable app for smartphone.

Screenshot of wind forecast by Windy. Wind speeds and directions are indicated by color and animation.
Screenshot of wind forecast by Windy. Wind speeds and directions are indicated by color and animation.