How can I use the forecasts in OpenWeatherMap?

Configuration
1

Hi, I have not yet understood how the OpenWeatherMap forecast works.

The following example: When we leave the house for a few hours and I press e.g. a button on the front door, I want an automation or script to query if all windows are closed and if not, if it will rain or windy or hot in the next hours.

How can I determine the maximum temperature, wind speed, etc. in the next few hours to display a warning that a window is still open?

2

I’m not sure if this will work well, but this is my current solution.

alias: Fenster schließen
description: >-
  Überprüft beim Verlassen des Hauses, wie das Wetter wird und ob man nicht
  besser die Fenster schließen sollte.
trigger:
  - device_id: 2ec3bda159fcdf60636518102354d2e1
    domain: zha
    platform: device
    type: remote_button_short_press
    subtype: turn_on
condition:
  - condition: and
    conditions:
      - condition: state
        entity_id: binary_sensor.alle_fenster
        state: "on"
      - condition: or
        conditions:
          - condition: numeric_state
            entity_id: sensor.openweathermap_forecast_temperature
            above: 25
          - condition: numeric_state
            entity_id: sensor.openweathermap_forecast_wind_speed
            above: 10
          - condition: numeric_state
            entity_id: sensor.openweathermap_forecast_precipitation_probability
            above: 50
action:
  - service: notify.mobile_app_pixel_7_mobil
    data:
      message: Es wäre besser, die Ferster zu schließen
mode: single

I use a helper group that includes all window sensors. If one or more of the windows are open AND one of the three condition matches I send a message to my phone.

3

It looks like it should work.

You can easily test it by altering the states of the 3 openweathermap sensors in Dev Tools > states and then pushing the button.

Conditions default to being ’ and ’ so you can simplify your conditions as follows:

condition:
  - condition: state
    entity_id: binary_sensor.alle_fenster
    state: "on"
  - condition: or
    conditions:
      - condition: numeric_state
        entity_id: sensor.openweathermap_forecast_temperature
        above: 25
      - condition: numeric_state
        entity_id: sensor.openweathermap_forecast_wind_speed
        above: 10
      - condition: numeric_state
        entity_id: sensor.openweathermap_forecast_precipitation_probability
        above: 50

Edit:
One factor to consider is how far into the future those sensors predict. My equivalent of your automation is to simply let me know if I have left any windows/doors open (and then I look at the sky).

4

Of course this is more of a toy automation that only works for some situations (one day), but it is not bullet proof. Looking to the sky is always recommend