What is the template you used in forecast_daily_template
?
If that’s the template you used then I suggest you change it to this:
forecast_daily_template: "{{ state_attr('sensor.weatherdatafrom8805wae', 'forecast') }}"
Be sure to execute Developer Tools > YAML > Reload Template entities after making any changes to the configuration of weather.home_weather_station
.
After you make the suggested change, post the revised configuration so we can review it.