This is something Windy does not provide and is not likely to for various reasons (do a search of threads on this topic).
You'll have to get frontal information from your national weather or flight services website.
see if this helps,
as per @idefix37 reply above.......there is a line below "undo" "load defaults" "save" buttons, with
import/export [view code]
click on [view code] and replace the displayed code with the following,
and then click "import" and "save".
If this fails, "load default" and try again.