Actions based on hourly weather

Configuration
,
1

I’m working on an automation going off of the code found here: Automation to retrieve and Publish hourly weather - #8 by 123

Is it possible to keep the object while still transforming the datetime?

I was trying to do this but failing:

rainy_times: >
          {{ my_hourly_forecast['weather.forecast_home'].forecast
            | selectattr('condition', 'in', ['rainy', 'windy', 'pouring', 'cloudy', 'partly cloudy'])        
            | selectattr('datetime', 'as_datetime')
            | selectattr('datetime', 'as_local')
            | selectattr('datetime', 'ge', today_at('06:00'))
            | selectattr('datetime', 'le', today_at('20:00'))
            | list }}

It gives me this error:
Error: TemplateRuntimeError: No test named ‘as_datetime’.

How can I go about getting a list of the original objects that meet the criteria of condition and time range?

Thanks!