The intense heat and drought that has plagued Midwestern grain crops could soon be felt around the world as global food prices are expected to climb in the near-term, bucking a recent downward trend, the United Nation’s Food and Agriculture Organization said on Thursday.

The FAO said its food price index fell for the third consecutive month in June 2012, dipping 4 points from May to 201, its lowest level since September 2010, as economic uncertainty and adequate food supplies outweighed dry weather that has recently sent crop prices higher.

“Food commodity prices have started rising again recently, mostly because of adverse weather and this may result in a rebound of the Food Price Index in July,” FAO said in its monthly report. “Adverse weather is diminishing prospects of an improvement in the maize (corn) supply situation and FAO is monitoring the development closely.”