im new to HA so please don’t be too harsh with me.
Iam trying to set up a new automation which checks the forecast within the next 12 hours and gives me a notification if it gets 2°C or below, so i can bring in all my plants who are not so fine with such cold temperatures.
I’ve tried everything within my power and asked ChatGPT a couple times - also told ChatGPT that there were recent changes (i guess it was 2024.3) but it still doesn’t work. I’m using the Met.no integration.
My automation looks like this atm:
triggers:
hours: “*”
trigger: time_pattern
conditions:
condition: template
value_template: >
{% set forecast = state_attr(‘weather.forecast_home’, ‘forecast’) %} {% if
forecast is not none %}
{% set frost_warning = false %}
{% for entry in forecast[:12] %}
{% if entry.temperature < 2 %}
{% set frost_warning = true %}
{% endif %}
{% endfor %}
{{ frost_warning }}
{% else %}
{{ log(‘Frostwarnung: Keine Vorhersagedaten vorhanden!’) }}
false
{% endif %}
actions:
data:
message: >-
Achtung! Die Temperatur wird in den nächsten 12 Stunden unter 2°C
fallen.
title: Frostwarnung
action: notify.mobile_app_myphone
mode: single
alias: example
triggers:
- trigger: time_pattern
hours: '*'
conditions: []
actions:
- action: weather.get_forecasts
data:
type: hourly
target:
entity_id: weather.forecast_home
response_variable: hourly
- variables:
temps: >
{{ hourly['weather.forecast_home'].forecast[:12]
| selectattr('temperature', 'lt', 2)
| list }}
- if: "{{ temps | count > 0 }}"
then:
- action: notify.mobile_app_myphone
data:
message: >-
Achtung! Die Temperatur wird in den nächsten
12 Stunden unter 2°C fallen.
title: Frostwarnung
If you want, there’s information in the temps variable that allows you to report the exact temperature value and time when the temperature will be less than 2.
Awesome, that one works!
Because it works i just notice that i probably had a brainlagg - since it probably checks this every hour now and gives a notification every hour. Potentially 12 times, if the temperature drops below 2 at the 12th hour after the initial check.
Not sure what the most clever way is to solve this…maybe with a check if the notification was sent within the last 6, 8 or 12 hours already? Any good idea regarding this? ^^
Please consider marking my post above with the Solution tag. It will automatically place a check-mark next to the topic’s title which indicates to others that the topic has been solved. This helps other users find answers to similar questions.
One way would be to replace this automation with a Trigger-based Template Binary Sensor. It will be set to on if the temperature is below 2 within the next 12 hours. It will also remain on until there’s no temperature lower than 2 in the next 12 hours. In other words, it changes to on and stays that way until there’s no risk of frost in the next 12 hours.
You can create a new automation, that’s triggered when the Template Binary Sensor changes state from off to on, and sends you a notification.
Or you can use the Alert integration to monitor the Template Binary Sensor and notify you when it turns on.
To help you get started, here’s an example of a Trigger-based Template Binary Sensor that turns on when the temperature is less than 2 in the next 12 hours.
It goes in your configuration.yaml file under the template: key (should be only onetemplate: key in the file).
If the file contains something that looks like this:
template: !include templates.yaml
Then it means you need to put the example into the templates.yaml file but then you must ensure the first line within that file does not include the template: key.
