Argentine Dryness an Increasing Concern The market is increasingly concerned about the ongoing dryness in Argentina and its possible impact on that country's 2013 soybean crop. A weather system that was expected to bring rain over the weekend did not do so, and the forecast for the next 10 days shows little chance of significant rainfall. Daily high temperatures are expected to be in the upper 80s and low 90s this week, except on Saturday when the high in Rosario is forecasted at 95 degrees Fahrenheit.After receiving excessive rainfall in November and December, Buenos Aires province saw only 30 percent of normal rainfall in January. Last month, rainfall also was below half of the average in the provinces of Santa Fe, Cordoba and Entre Ri...