Like college football analyst and former coach Lee Corso is famous for saying: Not so fast, my friend! After it looked like the grains were going to start giving back some of this week's gains, the slide ended, reversing to send the all pits higher at mid-day Thursday.

March corn is trading 6 1/4 cents higher at $6.22 3/4 per bushel, while January soybeans are 11 cents higher at $11.64 3/4 and March wheat is 6 3/4 cents higher at $6.23 3/4, according to Barchart.com.

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As in the last few days, the South American weather situation kept the momentum up for the grains, as did better-than-expected weekly grain export sales figures released Thursday morning.

• Read more: Grains set 1-month high