Templating json - attributes

How can i get this attributes?

{{states.weather.openweathermap.attributes.forecast.???}}

I need them for my forecast on my epaper:

{{ (as_timestamp(now()) + (1.0*24*3600|float))| timestamp_local}}

Solution:

{{ state_attr('weather.openweathermap', 'forecast')[0].condition }}
{{ state_attr('weather.openweathermap', 'forecast')[1].condition }}
...