* Dryness in U.S., Black Sea, Argentina supports wheat

* Corn prices rebound on expectations of strong demand

* Brazilian weather supports soybeans

HAMBURG, Oct 19 (Reuters) - Chicago wheat rose more than 1% on Monday to its highest in almost six years as dry weather in several leading exporters raised worries about supplies.

Corn was supported by expectations of strong U.S. exports while soybeans prices rose on weather concerns in Brazil and indications that exporter Brazil may import.

Chicago Board of Trade most-active wheat rose 1.3% to $6.33-3/4 a bushel by 1059 GMT, near Monday’s peak of $6.35, the highest since December 2014.

Soybeans rose 0.3% to $10.53-1/2 a bushel. Corn rose 0.8% to $4.05-1/4 a bushel.

"Wheat is strongly supported by concerns about weather damage to upcoming harvests in a series of large export production regions including Argentina, the U.S. Plains but especially Russia," said Matt Ammermann, StoneX commodity risk manager.

"Russia has received rain which to me could put a question mark over the level of real crop damage from recent dryness. But the market does not seem to want to hear this and remains focused on Russian dryness, with cool temperatures expected in Russia also bad for wheat development."

Long-awaited rains arrived in parts of Russia's winter wheat-sowing regions over the weekend but more is still needed, said consultancy IKAR.

"Soybeans are being supported by lack of rain in Brazil, there has been recent rain there but not enough to calm the market," Ammermann said.

"Any reduction in Brazil’s crop will help push more export demand to the United States, where soybean supplies are already looking tighter after heavy export sales."

Brazil will suspend tariffs on corn and soybean imports to help reduce food prices.

"Corn is also being underpinned by strong U.S. exports," Ammermann added. "Brazil’s announcement about suspending corn and soybean import tariffs also have the potential to shake up world markets if the country swings from being a soybean and corn exporter to an importer.” (Reporting by Michael Hogan, additional reporting by Naveen Thukral, editing by Emelia Sithole-Matarise)