Weather Forecast today / Problems with configure.yaml

Configuration
1

Hi at all,

I would like to read out the weather forecast for the current day with daily maximum temperature, condition, and date into a sensor.
I use the Met.No integration for this
Unfortunately, this does not work. The sensor always displays “unknown” under Attributes.

configure.yaml:

template:
  - trigger:
      - platform: time_pattern
        hours: /1
  - action:
      - service: weather.get_forecasts
        target:
          entity_id:
            - weather.forecast_home
        data:
            type: daily
        response_variable: tagesvorhersage
  - sensor:
    # Hier ein Template-Sensor, der verschieden Daten der Täglichen Vorhersage als Attribute gespeichert hat
      - name: Wetter-Vorhersage des heutigen Tages
        unique_id: forecast_today
        state: "{{ now().isoformat() }}"
        icon: mdi:hours-24
        attributes:
          condition: "{{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].condition }}"
          temperature: "{{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].temperature }}"
          datetime: "{{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].datetime }}"

Error-protocoll 1:

Logger: homeassistant.components.template.template_entity
Quelle: components/template/template_entity.py:203
Integration: Template (Dokumentation, Probleme)
Erstmals aufgetreten: 19. Februar 2025 um 15:34:19 (16 Vorkommnisse)
Zuletzt protokolliert: 19. Februar 2025 um 15:40:34

TemplateError('UndefinedError: 'tagesvorhersage' is undefined') while processing template 'Template<template=({{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].condition }}) renders=4>' for attribute 'condition' in entity 'sensor.wetter_vorhersage_des_heutigen_tages'
TemplateError('UndefinedError: 'tagesvorhersage' is undefined') while processing template 'Template<template=({{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].cloud_coverage }}) renders=4>' for attribute 'cloud_coverage' in entity 'sensor.wetter_vorhersage_des_heutigen_tages'
TemplateError('UndefinedError: 'tagesvorhersage' is undefined') while processing template 'Template<template=({{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].temperature }}) renders=4>' for attribute 'temperature' in entity 'sensor.wetter_vorhersage_des_heutigen_tages'
TemplateError('UndefinedError: 'tagesvorhersage' is undefined') while processing template 'Template<template=({{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].datetime }}) renders=4>' for attribute 'datetime' in entity 'sensor.wetter_vorhersage_des_heutigen_tages'

Error-protocoll2:

Logger: homeassistant.helpers.event
Quelle: helpers/template.py:645
Erstmals aufgetreten: 19. Februar 2025 um 15:34:19 (16 Vorkommnisse)
Zuletzt protokolliert: 19. Februar 2025 um 15:40:34

Error while processing template: Template<template=({{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].condition }}) renders=2>
Error while processing template: Template<template=({{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].cloud_coverage }}) renders=2>
Error while processing template: Template<template=({{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].temperature }}) renders=2>
Error while processing template: Template<template=({{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].datetime }}) renders=2>
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 643, in async_render
    render_result = _render_with_context(self.template, compiled, **kwargs)
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 2756, in _render_with_context
    return template.render(**kwargs)
           ~~~~~~~~~~~~~~~^^^^^^^^^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 1295, in render
    self.environment.handle_exception()
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
  File "/usr/local/lib/python3.13/site-packages/jinja2/environment.py", line 942, in handle_exception
    raise rewrite_traceback_stack(source=source)
  File "<template>", line 1, in top-level template code
  File "/usr/local/lib/python3.13/site-packages/jinja2/sandbox.py", line 293, in getitem
    return obj[argument]
           ~~~^^^^^^^^^^
jinja2.exceptions.UndefinedError: 'tagesvorhersage' is undefined

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 760, in async_render_to_info
    render_info._result = self.async_render(  # noqa: SLF001
                          ~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
        variables, strict=strict, log_fn=log_fn, **kwargs
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "/usr/src/homeassistant/homeassistant/helpers/template.py", line 645, in async_render
    raise TemplateError(err) from err
homeassistant.exceptions.TemplateError: UndefinedError: 'tagesvorhersage' is undefined

Picture Sensor:

2025-02-20 07_51_50-Einstellungen – Home Assistant – Mozilla Firefox
2025-02-20 07_51_50-Einstellungen – Home Assistant – Mozilla Firefox698×881 46.2 KB

Please help me! :slight_smile:

2

You may need to add an availability template to make sure the sensor does not try to run before the weather integration is up and running.

But even after that, none of your attributes will work as you are currently trying to access a response from a different weather service than the one you queried.

3

OP: to explain this explicitly:

entity_id:
  - weather.forecast_home
------------^^^^^^^^^^^^^

but

condition: "{{ tagesvorhersage['weather.forecast_haus_home'].forecast[0].condition }}"
----------------------------------------^^^^^^^^^^^^^^^^^^
1 Like
4

Thank you!

here ist the working code:

template:
  - trigger:
      - platform: time_pattern
        hours: /1

    action:
      - service: weather.get_forecasts
        target:
          entity_id:
            - weather.forecast_home
        data:
          type: daily
        response_variable: tagesvorhersage

    sensor:
      # Hier ein Template-Sensor, der verschiedene Daten der täglichen Vorhersage als Attribute gespeichert hat
      - name: Wetter-Vorhersage des nächsten Tages
        unique_id: forecast_next_1_day
        state: "{{ now().isoformat() }}"
        icon: mdi:hours-24
        attributes:
          condition: "{{ tagesvorhersage['weather.forecast_home'].forecast[0].condition }}"
          temperature: "{{ tagesvorhersage['weather.forecast_home'].forecast[0].temperature }}"
          datetime: "{{ tagesvorhersage['weather.forecast_home'].forecast[0].datetime }}"