Weather market is a term most applicable during times when prices are driven primarily by fear of what an extended period of adverse weather conditions might do to crop yields and production levels. Reaction to such potential impact is always influenced by market perceptions about supply and demand. It seems safe to declare that corn and soy futures have metastasized into a full blown weather market. This could perhaps include wheat futures in the sense that forecast weather conditions do not appear favorable for U.S. spring wheat or western white wheat, but those seem small considerations for now in another year of record or near-record world wheat production. One might of course ask, when is it not a weather market? Weather is always a ke...