* Wheat up for 2nd session as dry weather threatens 2021 crop

* Soybeans gain ground on expectations of lower U.S. supplies

SINGAPORE, Oct 13 (Reuters) - Chicago wheat futures rose around 1% on Tuesday, underpinned by worries that dry weather in key U.S. and the Black Sea region producing areas could threaten 2021 supplies.

Soybeans rebounded from a 3% drop in the previous session, as expectations of lower global supplies supported prices.

"Weather forecasters continue to expect no change to soil moisture for large portions of Black Sea and U.S. Hard Red Winter (wheat) crops," said Tobin Gorey, director of agricultural strategy, Commonwealth Bank of Australia.

"That weather context continues as an important source of support for wheat."

The most-active wheat contract on the Chicago Board of Trade

was up 0.9% at $5.99-3/4 a bushel by 0230 GMT, gaining for a second straight session.

Soybeans were up 0.4% at $10.37-3/4 a bushel and corn added 0.5% to $3.91 a bushel.

Russian wheat export prices rose last week due to high demand from exporters, and limited supply from farmers concerned about dry weather in several regions which signals risks for the 2021 crop, analysts said on Monday.

U.S. corn and soybean supplies will be smaller-than-forecast, as adverse weather reduced the acreage that farmers will harvest, the U.S. government said last week.

Commodity funds were net buyers of CBOT wheat futures contracts on Monday and net sellers of soybeans, corn, soymeal and soyoil futures contracts, traders said. (Reporting by Naveen Thukral; Editing by Aditya Soni)