Examples of using the WP-DarkSky Helper class: https://github.com/joshuadavidnelson/wp-darksky

wp-darksky-basic-example.php

<?php
/**
 * Basic example of WP-DarkSky useage.
 *  
 * @since 01-04-2017 - Updated for new Dark Sky API & Naming
 *
 * @link https://github.com/joshuadavidnelson/wp-darksky
 * @author Joshua David Nelson, josh@joshuadnelson.com
 */
 
$args = array(
	'api_key' 	=> '', // Enter your API key
	'latitude'	=> '', // enter the longitude
	'longitude'	=> '', // enter the latitude
);
$forecast = new DarkSky\Forecast( $args );

// Get the response, which will be an array similar to this one: https://gist.github.com/joshuadavidnelson/b27ff69e9a99c1500a89
$response = $forecast->get_response();

wp-darksky-exclude-data-example.php

<?php
/**
 * Basic example of WP-DarkSky useage with url query parameters to exclude data blocks.
 * 
 * Remove the ones you don't need for a faster response time. See the darksky.net API documentation for specifics.
 * 
 * @since 01-04-2017 - Updated for new Dark Sky API & Naming
 *
 * @see https://darksky.net/dev/docs/
 * 
 * @link https://github.com/joshuadavidnelson/wp-darksky
 * @author Joshua David Nelson, josh@joshuadnelson.com
 */

$args = array(
	'api_key' 	=> '', // Enter your API key
	'latitude'	=> '', // enter the longitude
	'longitude'	=> '', // enter the latitude
	'query'		=> array( 'exclude' => 'flags,currently,minutely,hourly,alerts' ), // Just grab the daily forecast, ignore all others.
);
$forecast = new DarkSky\Forecast( $args );

// Get the response
$response = $forecast->get_response();

wp-darksky-fresh-response-example.php

<?php
/**
 * Basic example of WP-DarkSky useage with a refreshed response.
 *  
 * @since 01-04-2017 - Updated for new Dark Sky API & Naming
 *
 * @link https://github.com/joshuadavidnelson/wp-darksky
 * @author Joshua David Nelson, josh@joshuadnelson.com
 */

$args = array(
	'api_key' 	=> '', // Enter your API key
	'latitude'	=> '', // enter the longitude
	'longitude'	=> '', // enter the latitude
);
$forecast = new DarkSky\Forecast( $args );

// Fresh response, clear the cache with the 'true' parameter
$response = $forecast->get_response( true ); // If the parameter is false or not set, it will use the cache.

wp-darksky-modify-cache-example.php

<?php
/**
 * Basic example of WP-DarkSky useage and available caching parameters. Below the defaults are shown.
 *  
 * @since 01-04-2017 - Updated for new Dark Sky API & Naming
 *
 * @link https://github.com/joshuadavidnelson/wp-darksky
 * @author Joshua David Nelson, josh@joshuadnelson.com
 */

$args = array(
	'api_key' 	=> '', // Enter your API key
	'latitude'	=> '', // enter the longitude
	'longitude'	=> '', // enter the latitude
	'cache_prefix'	=> 'api_', // careful here, md5 is used on the request url to generate the transient name. You are limited to an 8 character prefix before the combined total exceeds the transient name limit
	'cache_enabled'	=> true, // Enable the cache, or false to skip caching entirely
	'cache_time'	=> 6 * HOUR_IN_SECONDS, // the time in seconds to store the
	'clear_cache'	=> false, // set to true to force the cache to clear
);
$forecast = new DarkSky\Forecast( $args );

// Get the response with default parameters
$response = $forecast->get_response();

// Modify a caching parameter, refresh the response. In this case, we're shortening the cache time.
$forecast->cache_time = 5 * MINUTE_IN_SECONDS;
$response = $forecast->get_response( true );

wp-darksky-query-example.php

<?php
/**
 * Basic example of WP-DarkSky useage with url query parameters.
 *  
 * @since 01-04-2017 - Updated for new Dark Sky API & Naming
 *
 * @link https://github.com/joshuadavidnelson/wp-darksky
 * @author Joshua David Nelson, josh@joshuadnelson.com
 */

$args = array(
	'api_key' 	=> '', // Enter your API key
	'latitude'	=> '', // enter the longitude
	'longitude'	=> '', // enter the latitude
	'query'		=> array( 'units' => 'us', 'exclude' => 'flags' ) // See the Forecast.io API documentation
);
$forecast = new DarkSky\Forecast( $args );

// Get the response
$response = $forecast->get_response();

wp-darksky-temperature-forecast-example.php

<?php
/**
 * Basic example of WP-DarkSky used to output the current day's min/max temperatures in fahrenheight.
 *  
 * @since 01-04-2017 - Updated for new Dark Sky API & Naming
 *
 * @link https://github.com/joshuadavidnelson/wp-darksky
 * @author Joshua David Nelson, josh@joshuadnelson.com
 */

$args = array(
	'api_key' 	=> '', // Enter your API key
	'latitude'	=> '', // enter the longitude
	'longitude'	=> '', // enter the latitude
	'query'		=> array( 'units' => 'us', 'exclude' => 'flags' )
);
$forecast = new DarkSky\Forecast( $args );

// Get the current forecast data for the daily forecast, which provides the next 7 days
$daily = isset( $forecast->daily['data'] ) ? $forecast->daily['data'] : false;

// Pull out the current day's forecast
if( $daily ) {
	$date_format = 'n/j/Y'; // format used to compare dates
	$time_now = date( $date_format, current_time( 'timestamp' ) );
	foreach( $daily as $day ) {
		if( isset( $day['time'] ) && $time_now == date( $date_format, $day['time'] ) ) {
			echo number_format( $day['temperatureMin'], 0 ) . ' / ' . number_format( $day['temperatureMax'], 0 );
			break; // Breaking the foreach here because we found today's forecast, no need to loop through any more
		}
	}
}