U.S. stock index futures pointed to a flat open on Tuesday as investor anxiety over U.S. President Donald Trump's surprise failure to deliver on health-care reform subsided for tentative hopes on planned stimulus policies.
On the data front, the S&P/Case Shiller 20-city home price index showed U.S. home prices rose 5.9 percent to a 31-month high in January. Services PMIs (purchasing managers' index) and consumer confidence are scheduled to be released before at 9:45 a.m. and 10 a.m ET, respectively.
Elsewhere, Federal Reserve Chair Janet Yellen is due to speak on "Addressing Workforce Development Challenges" in Washington at around 5.50 p.m ET.
On the earnings front, Dave & Buster's, RH and Sonic are all due to report after the market close.
In Europe, the pan-European Stoxx 600 index was around 0.1 percent higher on Tuesday. In Asia, the Shanghai composite in China closed 0.43 percent lower, while the Nikkei in Japan closed 1.14 percent higher.
In oil markets, Brent crude traded at around $51.34 a barrel on Tuesday, up 1.16 percent, while U.S. crude was around $48.29 a barrel, up 1.2 percent.
Oil prices increased with the support of a weaker U.S. dollar although a seemingly relentless rise in U.S. production, as well as persistent uncertainty surrounding the landmark OPEC deal capped further gains.