Forecast - Weather information for Node.js

The aim of this module is to provide a common API for multiple weather providers and to return the results as a normalized Object.

Currently the only provider available is Forecast.io

Install

$ npm install --save forecast

Usage

To use the forecast.io API you will need an API key which is available from https://developer.forecast.io/

// Require the module
var Forecast = require('forecast');

// Initialize
var forecast = new Forecast({
  service: 'forecast.io',
  key: 'your-api-key',
  units: 'celcius', // Only the first letter is parsed
  cache: true,      // Cache API requests?
  ttl: {            // How long to cache requests. Uses syntax from moment.js: http://momentjs.com/docs/#/durations/creating/
    minutes: 27,
    seconds: 45
    }
});

// Retrieve weather information from coordinates (Sydney, Australia)
forecast.get([-33.8683, 151.2086], function(err, weather) {
  if(err) return console.dir(err);
  console.dir(weather);
});

// Retrieve weather information, ignoring the cache
forecast.get([-33.8683, 151.2086], true, function(err, weather) {
  if(err) return console.dir(err);
  console.dir(weather);
});

Example Output

{
  latitude: -33.8683,
  longitude: 151.2086,
  timezone: 'Australia/Sydney',
  offset: 10,
  currently: {
    time: 1367471626,
    summary: 'Partly Cloudy',
    icon: 'partly-cloudy-day', // For Skycons[https://github.com/darkskyapp/skycons]
    precipIntensity: 0.088,
    precipProbability: 0.07,
    precipType: 'rain',
    temperature: 20.4,
    dewPoint: 12.24,
    windSpeed: 5.83,
    windBearing: 178,
    cloudCover: 0.32,
    humidity: 0.65,
    pressure: 1024.35,
    ozone: 275.6
  },
  hourly: {
    summary: 'Partly cloudy until tomorrow morning.',
    icon: 'partly-cloudy-day',
    data: [
      {
        time: 1367470800,
        summary: 'Partly Cloudy',
        icon: 'partly-cloudy-day',
        precipIntensity: 0.087,
        precipProbability: 0.07,
        precipType: 'rain',
        temperature: 20.42,
        dewPoint: 12.26,
        windSpeed: 5.89,
        windBearing: 179,
        cloudCover: 0.32,
        humidity: 0.65,
        pressure: 1024.31,
        ozone: 275.72
      },
      {
        // additional hours suppressed
      }
    ]
  },
  daily: {
    summary: 'Sprinkling today; temperatures bottoming out at 19° on Sunday.',
    icon: 'rain',
    data: [
      {
        time: 1367416800,
        summary: 'Breezy in the morning.',
        icon: 'wind',
        sunriseTime: 1367440294,
        sunsetTime: 1367478912,
        precipIntensity: 0.061,
        precipIntensityMax: 0.009,
        precipIntensityMaxTime: 1367428500,
        precipType: 'rain',
        temperatureMin: 12.66,
        temperatureMinTime: 1367438400,
        temperatureMax: 20.42,
        temperatureMaxTime: 1367470800,
        dewPoint: 12.27,
        windSpeed: 5.79,
        windBearing: 194,
        cloudCover: 0.29,
        humidity: 0.72,
        pressure: 1023.87,
        ozone: 272.63
      },
      {
        // Additional days suppressed
      }
    ]
  },
  flags: {
    sources: [ 'isd', 'fnmoc', 'naefs', 'cmc', 'gfs' ],
    'isd-stations': [
      '947670-99999',
      '947675-99999',
      '947680-99999',
      '957640-99999',
      '957660-99999'
    ],
    units: 'si'
  },
  expires: 1367473292205
}

Contributors

License

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.