How to add a netatmo graph to Home Assistant dashboard

Configuration
1

I have the netatmo installed and see the current values:

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how can I add a graphic representation of the temperatur in the last 24 hrs or for instance 72 hrs?

2

You can do that with a History Graph card.

Select the temperature entities that you want to show, and set the "Hours to show" to either 24 or 72.