Inconsistent Weather Platforms

Home Assistant release with the issue: 0.67.0.dev0 (updated 30/03/18)

Last working Home Assistant release (if known): Unknown/Never?

Operating environment (Hass.io/Docker/Windows/etc.): Debian Virtual Env

Component/platform: Weather Platform, affects multiple (possibly all? weather components).

Description of problem: Data stored in the forecast arrays of various weather components is inconsistent. Values which are available aren't stored in some which makes using these weather components as interchangeable equals impossible (something that would be nice to have given some platforms are more accurate for some people).

Problem-relevant configuration.yaml entries and (fill out even if it seems unimportant):

weather:
  - platform: yweather

  - platform: darksky
    api_key: !secret darksky_api_key

  - platform: bom
    station: 'IDS60901.95677'

Additional information: Using templates shown, pulls the data arrays below. I believe the YWeather data is the most useful for this component. I haven't checked all components, but the Buienradar component looks to pull data consistent with YWeather.

YWeather
{{states.weather.yweather.attributes.forecast}}

Dark Sky
{{states.weather.dark_sky.attributes.forecast}}

BOM
{{states.weather.bom_parafield.attributes.forecast}}

YWeather
[{'datetime': '31 Mar 2018', 'temperature': 24, 'condition': 'sunny', 'templow': 12}, {'datetime': '01 Apr 2018', 'temperature': 24, 'condition': 'cloudy', 'templow': 15}, {'datetime': '02 Apr 2018', 'temperature': 20, 'condition': 'cloudy', 'templow': 13}, {'datetime': '03 Apr 2018', 'temperature': 21, 'condition': 'sunny', 'templow': 12}, {'datetime': '04 Apr 2018', 'temperature': 23, 'condition': 'cloudy', 'templow': 12}, {'datetime': '05 Apr 2018', 'temperature': 21, 'condition': 'sunny', 'templow': 13}, {'datetime': '06 Apr 2018', 'temperature': 21, 'condition': 'sunny', 'templow': 13}, {'datetime': '07 Apr 2018', 'temperature': 21, 'condition': 'sunny', 'templow': 12}, {'datetime': '08 Apr 2018', 'temperature': 28, 'condition': 'sunny', 'templow': 16}, {'datetime': '09 Apr 2018', 'temperature': 20, 'condition': 'cloudy', 'templow': 13}]

Dark Sky
[{'datetime': '2018-03-31T12:00:00', 'temperature': 22.5}, {'datetime': '2018-03-31T13:00:00', 'temperature': 24.0}, {'datetime': '2018-03-31T14:00:00', 'temperature': 25.0}, {'datetime': '2018-03-31T15:00:00', 'temperature': 25.5}, {'datetime': '2018-03-31T16:00:00', 'temperature': 25.8}, {'datetime': '2018-03-31T17:00:00', 'temperature': 25.5}, {'datetime': '2018-03-31T18:00:00', 'temperature': 24.1}, {'datetime': '2018-03-31T19:00:00', 'temperature': 22.3}, {'datetime': '2018-03-31T20:00:00', 'temperature': 20.7}, {'datetime': '2018-03-31T21:00:00', 'temperature': 19.5}, {'datetime': '2018-03-31T22:00:00', 'temperature': 18.5}, {'datetime': '2018-03-31T23:00:00', 'temperature': 17.7}, {'datetime': '2018-04-01T00:00:00', 'temperature': 17.1}, {'datetime': '2018-04-01T01:00:00', 'temperature': 16.7}, {'datetime': '2018-04-01T02:00:00', 'temperature': 16.6}, {'datetime': '2018-04-01T02:00:00', 'temperature': 16.7}, {'datetime': '2018-04-01T03:00:00', 'temperature': 17.1}, {'datetime': '2018-04-01T04:00:00', 'temperature': 17.3}, {'datetime': '2018-04-01T05:00:00', 'temperature': 17.0}, {'datetime': '2018-04-01T06:00:00', 'temperature': 16.7}, {'datetime': '2018-04-01T07:00:00', 'temperature': 17.3}, {'datetime': '2018-04-01T08:00:00', 'temperature': 19.2}, {'datetime': '2018-04-01T09:00:00', 'temperature': 21.5}, {'datetime': '2018-04-01T10:00:00', 'temperature': 23.3}, {'datetime': '2018-04-01T11:00:00', 'temperature': 24.6}, {'datetime': '2018-04-01T12:00:00', 'temperature': 25.5}, {'datetime': '2018-04-01T13:00:00', 'temperature': 26.0}, {'datetime': '2018-04-01T14:00:00', 'temperature': 26.3}, {'datetime': '2018-04-01T15:00:00', 'temperature': 26.4}, {'datetime': '2018-04-01T16:00:00', 'temperature': 26.1}, {'datetime': '2018-04-01T17:00:00', 'temperature': 25.2}, {'datetime': '2018-04-01T18:00:00', 'temperature': 23.9}, {'datetime': '2018-04-01T19:00:00', 'temperature': 22.5}, {'datetime': '2018-04-01T20:00:00', 'temperature': 21.0}, {'datetime': '2018-04-01T21:00:00', 'temperature': 19.6}, {'datetime': '2018-04-01T22:00:00', 'temperature': 18.7}, {'datetime': '2018-04-01T23:00:00', 'temperature': 18.0}, {'datetime': '2018-04-02T00:00:00', 'temperature': 17.6}, {'datetime': '2018-04-02T01:00:00', 'temperature': 17.3}, {'datetime': '2018-04-02T02:00:00', 'temperature': 17.2}, {'datetime': '2018-04-02T03:00:00', 'temperature': 17.2}, {'datetime': '2018-04-02T04:00:00', 'temperature': 17.3}, {'datetime': '2018-04-02T05:00:00', 'temperature': 17.2}, {'datetime': '2018-04-02T06:00:00', 'temperature': 16.8}, {'datetime': '2018-04-02T07:00:00', 'temperature': 16.6}, {'datetime': '2018-04-02T08:00:00', 'temperature': 17.0}, {'datetime': '2018-04-02T09:00:00', 'temperature': 17.8}, {'datetime': '2018-04-02T10:00:00', 'temperature': 18.9}, {'datetime': '2018-04-02T11:00:00', 'temperature': 20.2}]

BOM
[NOTHING HERE]

home-assistant / core

Inconsistent Weather Platforms #13564