CHICAGO, May 22 (Reuters) - The following are U.S. expectations for the resumption of grain and soy complex trading at the Chicago Board of Trade at 8:30 a.m. CDT (1330 GMT) on Friday.

NOTE: Futures markets will be closed on Monday for the U.S. Memorial Day holiday.

WHEAT - Steady to down 3 cents per bushel

• CBOT wheat futures were flat to lower as traders squared positions ahead of the long holiday weekend. Worries about a drought-reduced U.S. Plains crop limited declines.

• CBOT July soft red winter wheat WN26 was last down 1/4 cent at $6.47-1/4 a bushel. K.C. July hard red winter wheat KWN26 was last down 1/4 cent at $6.86-3/4 a bushel, while Minneapolis July spring wheat MWEN26 was 1/4 cent higher at $6.90-1/2 a bushel.

CORN - Steady to up 2 cents per bushel

• Corn futures were firmer after three sessions of losses on short covering and position squaring ahead of the long holiday weekend. Strong export sales also underpinned prices. Generally favorable U.S. Midwest crop weather limited gains.

• Rain is expected in the southern Midwest over the next 10 days, which could cause some flooding in spots. Northern areas of the Midwest are expected to be dry and warm, allowing farmers to continue seeding their crop.

• The U.S. Department of Agriculture confirmed private sales of 493,700 metric tons of U.S. corn to Mexico and 110,000 tons to undisclosed destinations.

• CBOT July corn CN26 was last up 3/4 cent at $4.63 per bushel.

SOYBEANS - Up 2 to 5 cents per bushel

• Soybean futures were higher for the first time in four sessions, supported by short covering and position squaring ahead of the long holiday weekend. Gains were capped by generally favorable U.S. Midwest crop weather.

• The USDA on Friday confirmed private sales of 252,000 metric tons of U.S. soymeal to undisclosed destinations.

• CBOT July soybeans SN26 were last 4-1/4 cents higher at $11.98-1/2 per bushel.