U.S. stocks were tipped to open higher on Tuesday, judging by trade in equity futures, recovering some of the previous day's falls as investors waited to see how the crisis in Greece unfolds.
Focus was also seen turning to U.S. economic data with May international trade numbers out at 8:30 a.m. EDT, followed by JOLTs job openings data at 10 a.m. and May consumer credit figures at 3 p.m.
"The U.S. economy is continuing to generate mixed signals in the wake of last week's rather disappointing payrolls report," Michael Hewson, chief markets analyst at CMC Markets, said in a note.
"May's trade balance data is expected to show a wider $42.75 billion deficit, from April's $40.9 billion figure."
Read MoreGreece fallout keeps tensions high
Wall Street shares closed lower on Monday amid heightened fears of a Greek exit from the euro zone after voters in the country rejected creditors' bailout terms in a referendum on Sunday. Euro zone finance ministers meet later on Tuesday to discuss the crisis.