node-red-node-openweathermap

node-red-node-openweathermap

A Node-RED node that gets the weather report and forecast from OpenWeatherMap.

Install

Run the following command in the root directory of your Node-RED install

    npm install node-red-node-openweathermap

Usage

Two nodes that get the weather report and forecast from OpenWeatherMap.

Note: An API key is required to use these nodes. To obtain an API key go to OpenWeatherMap.

Input Node

Fetches the current weather or 5 day forecast at a location specified by city and country or latitude and longitude every 10 minutes - and outputs a msg if something has changed.

Query node

Accepts an input to trigger fetching the current weather either from a specified city and country or latitude and longitude or passed in on

msg.location.city and msg.location.country
    or
msg.location.lat and msg.location.lon

Results

Current conditions will return

• description - a brief verbal description of the current weather for human reading.
• weather - a very short description of the current weather.
• icon - the weather icon code for the current conditions.
• id - the id given to the current weather by OpenWeatherMap
• tempc - the current ground temperature at that location in Celsius.
• tempk - the current ground temperature at that location in Kelvin.
• humidity - the current relative humidity at the location in percent.
• windspeed - the current wind speed at the location in metres per second.
• winddirection - the current wind direction at the location in meteorological degrees.
• location - the name of the location from which the data was sourced.
• rain - the precipitation amount in mm/h (only present if it is raining).

5 day Forecast will return a 5 part array, each with

• dt - epoch timestamp
• pressure - in hPa
• humidity - in %
• speed - wind speed in metres per second
• deg - wind direction in degrees
• clouds - cloudiness in %
• temp - an object with various temperatures in degC,
  • day, min, max, night, eve, morn
• weather - an object with some misc. data,
  • description, icon, main, id

The node also sets the following properties of msg.location.

• lat - the latitude of the location from which the data was sourced.
• lon - the longitude of the location from which the data was sourced.
• city - the city from which the data was sourced.
• country - the country from which the data was sourced.

Finally, the node sets:

• msg.time - the time at which the weather data was received by OpenWeatherMap.
• msg.data - the full JSON returned by the API. This is VERY rich...

Weather data provided by OpenWeatherMap.org/