Google dejo de ofrecer ese servicio.
http://support.google.com/websearch/...answer=2664197
era de igoogle no era publico por eso dejo el servicio votado sin avisar.
yo tuve que cambiar lamentablemente a weather.service.msn.com
aqui dejo el codigo porsi a alguien le sirve:
Código PHP:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<?
$xml = simplexml_load_file('http://weather.service.msn.com/data.aspx?weadegreetype=C&culture=es-ES&weasearchstr=Curacavi,CL');
$information = $xml->xpath("weather");$information=(array)$information[0]->attributes();$information=$information['@attributes'];
$current = $xml->xpath("weather/current");$current=(array)$current[0]->attributes();$current=$current['@attributes'];
$forecast_list = $xml->xpath("weather/forecast");
?>
<html>
<head>
<title>Pronóstico del Tiempo</title>
</head>
<body>
<h3>Curacaví, Santiago de Chile</h3>
<h4>El Clima Ahora</h4> <div class="weather"> <img src="<?= $information[imagerelativeurl].$current['skycode']?>.gif" alt="Clima"?>
<span class="condition">
<?= $current[temperature]?>°C,
<?= $current[0]->condition['data'] ?>
</span>
</div>
<h4>Proximos Días</h4>
<?
foreach($forecast_list as $forecast){
$forecast=(array)$forecast[0]->attributes();$forecast=$forecast['@attributes'];
?>
<div class="weather">
<img src="<?= $information[imagerelativeurl].$forecast['skycodeday']?>.gif" alt="Clima"?>
<div><? echo strtoupper(substr($forecast[day],0,1));echo substr($forecast[day],1);?></div>
<span class="condition">
<?= $forecast[low]?>°C - <?= $forecast[high] ?>°C,
<?= $forecast[skytextday]?>
</span>
</div>
<? }?>
