homeassistant-config/packages/climate/climate_feelslike.yaml

sensor:
  # - platform: temperature_feels_like
  #   name: temperature_outside_feelslike
  #   source:
  #     - weather.openweathermap

  - platform: template
    sensors:
      temperature_inside:
        value_template: >
          {{ states('sensor.kai_regal_temperature') }}
        friendly_name: 'Temperature'
        unit_of_measurement: "°C"
        device_class: temperature
      humidity_inside:
        value_template: >
          {{ states('sensor.kai_regal_humidity') }}
        friendly_name: 'Humidity'

      temperature_outside:
        value_template: >
          {{ states('sensor.garten_gewaechshaus_temperature') }}
        friendly_name: 'Temperature'
        unit_of_measurement: "°C"
        device_class: temperature
      humidity_outside:
        value_template: >
          {{ states('sensor.garten_gewaechshaus_humidity') }}
        friendly_name: 'Humidity'

  - platform: temperature_feels_like
    name: temperature_inside_feelslike
    source:
      - sensor.temperature_inside
      - sensor.humidity_inside

  - platform: temperature_feels_like
    name: temperature_outside_feelslike
    source:
      - sensor.temperature_outside
      - sensor.humidity_outside