<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
 <env:Body xmlns:x="http://www.webservicex.net">
   <x:setWeatherData>
     <data>
       <x:MinTemperatureF>1</x:MinTemperatureF>
     </data>
   </x:setWeatherData>
 </env:Body>
</env:Envelope>