The U.S. dollar Index will likely extend its slide this week on expectations that top Federal Reserve policymakers - including current chairman Ben Bernanke - will reiterate it's still too early to start cutting stimulus as the economic recovery isn't durable enough, according to CNBC's latest market survey of currency traders, analysts and strategists.
Strategists will also look for signals from the Fed speakers - which will include voting members of the central bank's main decision-making body – the Federal Open Market Committee (FOMC) – on whether they support lowering the forward guidance threshold for unemployment, which may influence future policy direction, from the current 6.5 percent to possibly as low as 5.5 percent.
(Read more: Yellen: Fed must promote very strong recovery)
Bernanke, whose term expires on Jan. 31, is scheduled to speak at the annual dinner of the National Economists' Club in Washington D.C. on Tuesday.
On the same day, FOMC voting member and Chicago Fed President Charles Evans delivers the keynote at the Midwest Bank Leaders Conference. William Dudley, President of the New York Fed and FOMC vice-chairman, speaks on Monday while St. Louis Fed President James Bullard - who also holds voting rights - speaks on the economy and monetary policy Wednesday, coinciding with the release of the minutes from the Fed's Oct. 29-30.
"The USD might come under pressure as the doves get their say," said Emma Lawson, senior currency strategist at the National Australia Bank in Sydney. "The market had been thinking about a December taper - I think that's going to be pushed out through to March after they speak."
Fed chief Ben Bernanke "has the opportunity to say more about the changing of the threshold - the unemployment level they need to see before they start raising interest rates," Lawson said. "If he moves it down to 5.5 percent, there's potential for those who've built up USD longs to start to unwind some of those positions for the week."
Bullish positions in the U.S. dollar look stretched, many strategists said, suggesting that the currency may be vulnerable to weakness.
(Read more: Dollar slides on Fed taper uncertainty, Yellen)