Hi, user tshopper sent me the solution by private message because he has a problem to post here and asked me to post the solution for everyone.
I can say that this fix is working ok, at least in my website, I have to thanks to user tshopper for the solution.
Here I copy the message with the solution:
Dear Damian, I also use the modul and have solve the problem.
There is any problem with the post function, so I can not post the workaround.
Please post the workaround at the forum for the other users. Thanks Matthias
Workaround for weather modul:
You must edit the "helper.php" at the modul direction ("/modules/mod_weather_gk4/helper.php").
You will find the entries at line 352 and line 369.
Old Version 352:
"curl_setopt($curl, CURLOPT_URL, 'http://weather.yahooapis.com/forecastrss?w='.$this->config['WOEID']."&u=".$this->config['tempUnit']);"
New Version 352:
"curl_setopt($curl, CURLOPT_URL, 'http://xml.weather.yahoo.com/forecastrss?w='.$this->config['WOEID']."&u=".$this->config['tempUnit']);"
Old Version 369:
"$this->content = file_get_contents('http://weather.yahooapis.com/forecastrss?w='.$this->config['WOEID']."&u=".$this->config['tempUnit']);"
New Version 369:
"$this->content = file_get_contents('http://xml.weather.yahoo.com/forecastrss?w='.$this->config['WOEID']."&u=".$this->config['tempUnit']);"