This is a Munin plugin that outputs weather data that was forecast by online sources for the present time.
This plugin will not give you a weather forecast for any future date. Instead it will store the forecasts (for e.g. the next day) and output them whenever they are due.
The plugin can output temperature (°C) and humidity (%) values.
Install & config
Requirements: Munin (obviously), Python 3 and pytz (
pip3 install pytz).
For a default setup:
sudo make install
This will create 2 graphs: one for temperatures and one for humidity. You may wish do to otherwise by creating the symbolic links yourself (see the Makefile). The name of the links is not important.
In any case you need to edit the Munin configuration:
Munin host (optional)
You may want to create a dedicated Munin host to separate the weather data from all your system graphs. In the master conf (e.g.
# Your existing conf for a local munin-node [my.own.domain] address 127.0.0.1 use_node_name yes # Add this [own.domain;Weather] address 127.0.0.1 use_node_name no
If you're already using the plugin and would like to create the separate host later, see How to migrate Munin graph history.
Then you need to configure the plugin in the munin-node conf (e.g.
/etc/munin/plugin-conf.d/munin-node). Here is an example config. See below for available data sources.
[forecast_weather_*] # If you created a dedicated Munin host env.host_name Weather # If you registered on Dark Sky env.darksky_key xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx # If you change this, make sure the file is read/writable by nobody:munin # or the user the plugin runs as env.db_file /var/cache/munin/forecast_weather.db # If you use prevision-meteo.ch env.place biot-06 # Positive or negative numbers. No N/S/E/W. env.latitude 43.6286 env.longitude 7.0964 [forecast_weather_humidity] env.graph_title Forecast humidity # A field name is "field" followed by digits. # Most parameters (e.g. latitude, advance) can be set either globally (above) # or on a field-by-field basis (below). env.field100_label Prevision-meteo 24h # Advance and time resolution are expressed in seconds env.field100_advance 86400 env.field100_time_resolution 3600 env.field100_type humidity [forecast_weather_temperature] env.graph_title Forecast temperature env.field100_label Dark Sky current # 0 for current time env.field100_advance 0 # Munin typically runs every 5 minutes so a smaller time resolution # makes little sense env.field100_time_resolution 300 env.field100_type temperature
The plugin can show data from the following sources:
Dark Sky. Worldwide forecasts. Freemium. You need to register online and set the
darksky_keyparameter in the munin-node conf. Accepts latitude/longitude only.
Prevision-meteo.ch. Forecasts for Switzerland, Belgium and France. Free, no registration required. Accepts locality identifier (preferred, to look up on the website) or latitude/longitude.