Schakel switch als tijdstip max/min temperatuur wordt bereikt (OpenWeather)

HA-OpenWeather-configuration.yaml

##################
#  Templates BJK # ==> https://www.home-assistant.io/integrations/template/
##################
template:
  - binary_sensor:
      - name: "Time Max Temperature Reached" # time_max_temperature_reached
        state: >
          {{ as_timestamp(now())|timestamp_custom('%H:%M')|string()
             == states('sensor.time_max_temperature')|string() }}
      - name: "Time Min Temperature Reached" # time_min_temperature_reached
        state: >
          {{ as_timestamp(now())|timestamp_custom('%H:%M')|string()
             == states('sensor.time_min_temperature')|string() }}
    trigger:
      - platform: time_pattern
        # Update time of max every 4h 
        hours: "/4"
      - platform: event # reload when scenes or automations are updated
        event_type:
        - automation_reloaded
        - scene_reloaded
    sensor:
         #
         # what time (HH:MM) is forecasted to have max temperature
         #
       - name: "Time Max Temperature"  # time_max_temperature
         unit_of_measurement: "h"
         state: >
           {% set start = now().replace(hour=0,minute=0,second=0, microsecond=0) %}
           {% set end = (start + timedelta(days=1)) %}
           {% set start = start.strftime("%Y-%m-%dT%H:%M:%S+00:00") %}
           {% set end = end.strftime("%Y-%m-%dT%H:%M:%S+00:00") %}
           {% set ns = namespace(max_temp=-100, max_temp_datetime=datetime) %}
           {% for i in state_attr('weather.openweathermap', 'forecast') -%}   
                {% if start <= i.datetime < end %}
                  {% if i.temperature > ns.max_temp %}
                    {% set ns.max_temp = i.temperature %}
                    {% set ns.max_temp_datetime = i.datetime %}
                  {% endif %}
                {% endif %}
            {% endfor %}
            {{ as_timestamp(ns.max_temp_datetime)|timestamp_custom('%H:%M') }}
         #    
         # what hour is forecasted to have min temperature?
         #
       - name: "Time Min Temperature"  # time_min_temperature
         unit_of_measurement: "h"
         state: >
           {% set start = now().replace(hour=0,minute=0,second=0, microsecond=0) %}
           {% set end = (start + timedelta(days=1)) %}
           {% set start = start.strftime("%Y-%m-%dT%H:%M:%S+00:00") %}
           {% set end = end.strftime("%Y-%m-%dT%H:%M:%S+00:00") %}
           {% set ns = namespace(min_temp=100, min_temp_datetime=datetime) %}
           {% for i in state_attr('weather.openweathermap', 'forecast') -%}   
                {% if start <= i.datetime < end %}
                  {% if i.temperature < ns.min_temp %}
                    {% set ns.min_temp = i.temperature %}
                    {% set ns.min_temp_datetime = i.datetime %}
                  {% endif %}
                {% endif %}
            {% endfor %}
            {{ as_timestamp(ns.min_temp_datetime)|timestamp_custom('%H:%M') }}