condicionactualmetar.php

<?php

$content = file_get_contents("http://www.meteochile.cl/js/condicionactualmetar.js?" . time());

$lines = explode("\n", $content);

$lastUpdated = str_replace("var CondicionActualMetar_actualizado = '", "", str_replace(".';", "", $lines[count($lines)-4]));
$data = []; 
$data['lastUpdated'] = $lastUpdated;
$data['ciudades'] = []; 
$lines = array_slice($lines, 3, count($lines)-8);
foreach($lines as $l){
  list($a,$b) = explode(" = '", $l);
  $data['ciudades'][str_replace("CondicionActualMetar['", "", str_replace("']", "", $a))] = explode("|", str_replace("';", "", $b));
}

var_dump($data);