The website that I usually go to is the CME GROUP website, this is a very authoritative site. I can get the price data, different kinds of charts and many agricultural market information.
http://www.cmegroup.com/
The other website I usually go to is the brecoder website, you can get some new policies, weather reports and some forecast information there.
http://www.cmegroup.com/
And if I want to know the weather information more specific, I will go to the weatherchannel website.
http://www.weather.com/