CHICAGO (Dow Jones)--Chicago Board of Trade corn futures are expected to open lower amid a widespread commodity correction and drier weather forecasts.

Corn is called 8 to 10 cents lower. In overnight trade, December corn was down 9 1/2 cents to $3.73 1/2 per bushel and March corn was down 10 cents to $3.85.

The market is due for some profit-taking after climbing 41 1/2 cents since Oct. 5, according to some traders. Prices will be nudged lower by a correction higher in the recently sagging dollar, analysts said.

Traders are also noting drier weather forecasts, although the forecast is not completely free of rain. Analysts said there could be some drying late in the weekend and early next week, and that another weather system arriving in the 6-to 10-day period might not be as wet as expected.

The improved weather might allow for some harvest progress, analysts say. One analyst said the weather could give producers in the western U.S. corn belt in particular some time to make some headway.

"It's far from ideal," said Marty Foreman, analyst with Doane Advisory Services. "But we've put a lot in the market pretty quickly here."

Once the harvest does get under way, farmer sales could press on the market, traders and analysts add. Some traders say that the fundamentals don't support prices at $4 or higher.

Country Hedging analyst Sterling Smith said in a morning commentary that "the large fund net long position could weigh on the market over the next few sessions."

The next upside price objective is to push and close December prices above psychological resistance at $4.00 a bushel, a technical analyst said. The next downside price objective for the bears is to push and close prices below solid technical support at the September high of $3.47 3/4 a bushel.

First resistance for December corn is seen at Wednesday's high of $3.88 3/4 and then at $3.90, the technical analyst said. First support is seen at Wednesday's low of $3.77 1/2 and then at $3.70.

Weekly export sales, usually released on Thursday, are being delayed until Friday because of the Columbus Day holiday on Monday.


-By Ian Berry, Dow Jones Newswires; 312-341-5778; ian.berry@dowjones.com