The U.S. Labor Department's producer price index for April will be out at 7:30 a.m. CDT, another clue for Fed policy. Brazil's crop agency, Conab, is expected to release new estimates for Brazil's corn and soybean production early Tuesday.
Weather
A system is slowly moving through the Ohio Valley Tuesday morning and will bring areas of showers and thunderstorms east of the Mississippi River. Another system is moving into the Northern Plains that will get some showers going there but also a bit farther south in the Central Plains.