Financial markets in the US will remain closed in observance of the Labor Day holiday on Monday. On Tuesday, the ISM Manufacturing Purchasing Managers Index (PMI) for August will be featured in the US economic docket. Investors expect the headline PMI to edgehigher to 47.8 from 46.8 in July. A reading above 50, which would suggest that the business activity in the manufacturing sector recovered back into the expansion territory, could provide a boost to the USD with the immediate reaction and weigh on Gold.