See on the daily bar chart for July corn futures (ZCN25) that prices have dropped down to solid technical support around the $4.50 area. See at the bottom of the chart that the Relative Strength Index (RSI) is reading below 30.00, suggesting a market that is overdone on the downside. Also, see that the RSI is presently in a posture and at a price level that has correctly signaled market bottoms being close at hand over the past few months.

Fundamentally, weather in the U.S. Corn Belt over the past few weeks has been bearish for corn prices, with rains and warmer temperatures that benefit corn production. 

However, much of the Corn Belt will see drier and warmer weather for the next roughly 10 days, which could begin to deplete soil moisture if that weather pattern extends. Also, the corn market bulls have a weather-market wild card in their vests. Many more years than not, the corn market does experience a weather-market-induced price rally during the U.S. planting and growing season.

Consider buying a call option on July corn futures, with an upside price objective of $5.00 or above. The option expires the third Friday in June.

IMPORTANT NOTE: I am not a futures broker and do not manage any trading accounts other than my own personal account. It is my goal to point out to you potential trading opportunities. However, it is up to you to: (1) decide when and if you want to initiate any trades and (2) determine the size of any trades you may initiate. Any trades I discuss are hypothetical in nature.

Here is what the Commodity Futures Trading Commission (CFTC) has said about futures trading (and I agree 100%): 

Trading commodity futures and options is not for everyone. IT IS A VOLATILE, COMPLEX AND RISKY BUSINESS. Before you invest any money in futures or options contracts, you should consider your financial experience, goals and financial resources, and know how much you can afford to lose above and beyond your initial payment to a broker. You should understand commodity futures and options contracts and your obligations in entering into those contracts. You should understand your exposure to risk and other aspects of trading by thoroughly reviewing the risk disclosure documents your broker is required to give you.