How to not show historical sensor in the future

[ghost]

Hi,

I have created a forecast sensor to show temperature for the next 24 hours and I am plotting it alongside a 'normal' temp sensor.

It currently looks like this:

I am trying to hide the incorrect data for the 'normal' sensor in the future (the horizontal orange line).

fill_raw: null and fill_raw: zero do not seem to work under these circumstances. Can anyone give me a pointer? My yaml is as follows:

- type: custom:apexcharts-card
  graph_span: 48h
  span:
    offset: +24h
    #start: hour # I want to display from the start of the current hours
  now:
    show: true
    label: now
    color: red
  header:
    show: true
    title: Temperature
    show_states: false
  all_series_config:
    curve: smooth
    stroke_width: 3
    fill_raw: zero
    show:
      legend_value: false
  series:
    - entity: sensor.pirateweather_temperature
      name: History
    - entity: sensor.pirateweather_forecast_temp
      name: Forecast
      data_generator: |
        return entity.attributes.forecast_time.map((peak, index) => {
          return [new Date(peak).getTime(), entity.attributes.forecast_temperature[index]];
        });

[ghost]

OK, for anyone that wants to know this in the future, I worked it out.

The key is extend_to: now for the historical sensor. This gives the following:

and after making it pretty...