I created a KachelmannWetter API custom integration over the holidays. Maybe it helps others as well. It features 14 days of daily forecasts and current conditions for now.
https://github.com/manutoky/haKachelmannWetter
Thanks for the integration! I forked it yesterday and spend some time to add features and possibly all data from the API: GitHub - nodomain/haKachelmannWetter: Custom Home Assistant integration for KachelmannWetter API · GitHub
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