ReadWeatherData

Retrieves weather data from National Weather Service Server.

Returns weather related data for the location specified by its station
ID stdID. This weather data is retrieved from the National Digital Forecast Database XML Web Service by the National Weather Service (NWS)
Details of this service can be found at: http://www.weather.gov/xml/

This function produces the weather data in a Matlab friendly format. One can invoke this function periodically and use the data to generate
trend graphs.