dwd_weather: Possibly wrong weather forecast data?

Version of home_assistant

core-2021.4.6 with Home Assistant OS 5.13 on RPi4b 8Gb

Version of the custom_component

v1.2.10

Describe the bug

I am actually not sure, whether something is wrong. But I am creating this issue to give a chance for timely comparison of current weather forecasts:

The current 5 day weather forecast through this custom integration for my region deviates substantially from other reliable forecasts. I am not sure whether this is a normal deviation. Usually DWD is very reliable and the current weather situation is stable and predictable. And up to version 1.2.8 I did not witness such deviations.

Integration settings: Station-ID J907 = GOLDENE BREMM
(close to Saarbrücken)

Card settings: type: weather-forecast entity: weather.dwd_weather_goldene_bremm

Result in weather card:

Kachelmann forecast for comparison: Neither cloud coverage nor temperature profile seem to match. https://kachelmannwetter.com/de/vorhersage/2842647-saarbruecken/kompakt/deu-hd

Debug log

(No conspicuous log entries.)