CBOT Trends-Wheat and corn down 1-3 cents, soy down 3-5 cents

CHICAGO, Sept 30 (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 Tuesday.

WHEAT - Down 1 cent to 3 cents per bushel

• CBOT wheat Wv1 set a one-week low as traders awaited the U.S. Department of Agriculture's quarterly U.S. grain stocks data and a small grains report at 11 a.m. CDT (1600 GMT).

• Analysts estimated U.S. wheat stocks were 2.043 billion bushels on September 1, up from 1.992 billion a year earlier.

• The USDA was expected to peg U.S. all-wheat production at 1.925 billion bushels, compared to its previous estimate of 1.927 billion, analysts said.

• Globally, supplies were ample.

• CBOT December soft red winter wheat WZ25 was last down 2 cents at $5.17-1/2 per bushel. K.C. December hard red winter wheat KWZ25 was 1-1/2 cents lower at $5.06-3/4 per bushel, while Minneapolis December wheat MWEZ25 eased 2-1/4 cents to $5.67 per bushel.

CORN - Down 1 cent to 3 cents

• U.S. farmers took advantage of warm, dry weather to harvest a crop that is expected to be the biggest in history.

• The corn harvest was 18% complete by Sunday, according to USDA.

• Analysts estimated the agency's quarterly stocks report would show U.S. corn inventories of 1.337 billion bushels on September 1, down from 1.763 billion a year earlier.

• Export demand has been strong.

• Traders braced for a fast-approaching U.S. government shutdown. Previous shutdowns have disrupted the release of USDA reports.

• CBOT December corn CZ25 was last down 2-1/4 cents at $4.19-1/4 per bushel.

SOYBEANS - Down 3 cents to 5 cents

• CBOT soy Sv1 set a one-week low under pressure from the expanding U.S. harvest and a lack of Chinese buying during Washington's trade war with Beijing.

• The U.S. soybean harvest was 19% complete as of Sunday, according to USDA.

• USDA's stocks report was expected to show U.S. soy inventories were 323 million bushels on September 1, down from 342 million a year earlier.

• Analysts attributed the slight decline to strong domestic crushings.

• CBOT November soybeans SX25 were last down 3-1/2 cents at $10.07 per bushel.