This is website is well organized. This website explains the weather with map over the U.S. This helps to predict future contract price. This website provides daily contract price chart like CME. So it is familiar to use it. And in market analysis, the website explains the commodity market expected chagne related to economic facts.
http://www.farmandranchguide.com/
This website is one of reliable sources to gain news in the area of the Upper Midwest by providing frequently updated new. You could search news based on categories: market, regional, crop news and livestock. And in right side of the website, it provides future price chart. And it shows weather forecast. Since weather is one of important factor to predict following crop and future contract price, the website is very helpful when it comes to knwoing the events in Midwest area.
http://www.usda.gov/oce/commodity/wasde/
It is easy to find that many reporters expect future price based on this information. It is World Agricultural Supply and Demand Estimates (WASDE) report provides expected supply and demand for not only U.S. but also global crops and livestock. In addition to literature on price, this report gives statistic data published by USDA and other government agencies. It is released on Oct. 11, Nov. 9, Dec. 11. I think it is better idea of keeping eyes on the report, and use it when you trade.