CANBERRA, Sept 23 (Reuters) - Chicago corn futures edged lower on Thursday, pressured by expectations of ample global supplies as U.S. farmers rapidly finish harvesting their crops.

FUNDAMENTALS

* The most active corn futures on the Chicago Board Of Trade were down 0.5% at $5.23 a bushel, as of 0203 GMT, having closed 1.6% higher in the previous session.

* The most active soybean futures were down 0.2% at $12.80-3/4 a bushel, having firmed 0.7% on Wednesday.

* The most active wheat futures were little changed at $7.06 a bushel, having closed 2.2% higher in the previous session.

* Farmers are expected to make brisk progress on harvesting corn crops amid forecasts for mostly dry weather across the U.S. Midwest and Delta region over the next 10 days.

MARKET NEWS

* The U.S. dollar was choppy on the heels of the latest policy announcement by the Federal Reserve on Wednesday, while risk-sensitive currencies such as the Australian dollar and Chinese yuan strengthened after China's Evergrande said it would make a bond coupon payment.

* Oil prices settled higher on Wednesday after U.S. crude stocks fell to their lowest levels in three years as refining activity recovered from lows hit during recent storms.

* The three major U.S. stock indexes rose 1% on Wednesday as investors mostly took in stride the latest signals from the Federal Reserve, including clearing the way for the central bank to reduce its monthly bond purchases soon. (Reporting by Colin Packham; Editing by Ramakrishnan M.)