BEIJING, June 30 (Reuters) - Chicago corn futures edged

higher on Tuesday, while soybeans and wheat were nearly

unchanged, as traders adjusted positions ahead of the U.S.

Department of Agriculture's quarterly grain stocks report and

monitored weather in the U.S. Midwest.

FUNDAMENTALS

* The most-active soybean contract on the Chicago Board of

Trade (CBOT) rose 0.02% to $11.39-1/4 a bushel by 0108

GMT, while corn climbed 0.25% to $4.03 a bushel. Wheat

lost 0.04% to $5.79-1/2 a bushel.

* The USDA will release its quarterly grain stocks report

later in the day, with market participants on average expecting

the agency to lower its corn acreage estimate and raise its

soybean planting estimate.

* Hot weather across much of the U.S. Midwest this week is

being monitored, with temperatures expected to peak in the next

few days, according to Commodity Weather Group. Showers and

cooler temperatures after midweek are expected to limit crop

stress.

* Soybeans and corn came under pressure from weaker crude

oil prices, given their role in biofuel production, while wheat

was weighed down by the U.S. Plains harvest and ample global

supplies.

* In its weekly report on Monday, the USDA rated 67% of the

U.S. corn crop and 65% of soybeans as good to excellent, each

down one point from a week earlier and below expectations.

* Winter wheat ratings held steady at 26%, while harvest

progress lagged forecasts at 48% complete versus expectations of

54%.

* Commodity funds were net sellers of CBOT corn, soy and

wheat futures, traders said on Monday.

DATA/EVENTS (GMT)

0130 China NBS Manufacturing PMI Jun

0600 UK GDP QQ, YY Q1

0645 France CPI (EU Norm) Prelim YY, MM Jun

0645 France CPI Prelim YY, MM NSA Jun

0645 France Producer Prices YY May

0755 Germany Unemployment Chg, Rate SA Jun

1200 Germany CPI, HICP Prelim YY Jun

1400 US Consumer Confidence Jun