Fixing #57: Open Weather Map API provides wind speed measurements at 10m height, not 2m as expected by this component. When using this component using their API we will automatically take care of the conversion for you.
IMPORTANT: if you are supplying your own sensors (for example your own weather station) we assume you take a measurement at 2m (6' 6 3/4") above ground. If not, you need to convert your wind speed measurement to a value at 2m before passing it to this component. Please refer to this page for the formula: https://github.com/jeroenterheerdt/HAsmartirrigation/wiki/Converting-Wind-speed-to-wind-speed-at-2m-height.
Again, you only need to do this when not using Open Weather Map for wind speed.