CHICAGO, June 6 (Reuters) - Chicago Board of Trade wheat futures closed higher on Friday for a third straight session as escalating hostilities between key grain exporters Russia and Ukraine, along with weather-related U.S. harvest delays, prompted speculators to cover short positions ahead of the weekend, traders said.
CBOT July soft red winter wheat WN25 settled up 9-1/4 cents at $5.54-3/4 per bushel after reaching $5.55-3/4, the contract's highest since May 21.
K.C. July hard red winter wheat KWN25 ended up 6-3/4 cents at $5.49-1/4 a bushel and Minneapolis July spring wheat MWEN25 rose 10 cents to finish at $6.35-1/4 a bushel.
Russia launched an intense missile and drone barrage at the Ukrainian capital Kyiv, killing four people. The attacks followed a warning from Russian President Vladimir Putin that the Kremlin would hit back after Ukrainian drones destroyed several strategic bomber aircraft in attacks inside Russia.
In the southern U.S. Plains, the National Weather Service posted flood watches on Friday afternoon across much of Oklahoma, where farmers are starting to harvest winter wheat.
Euronext wheat futures rose as the euro fell back from a one-month high against the dollar and as CBOT prices firmed.
Romania, one of the European Union's biggest grain producers, is expecting a record-large wheat harvest this year, as ample spring rain should help it rebound from last year's drought-stricken output, analysts and the agriculture ministry said.
Ukraine's grain exports in the 2025/26 July-June season are expected to fall to 35 million metric tons in the worst-case scenario against a forecast 40 million in 2024/25, following a lower harvest, a deputy agriculture minister said.