The yuan suffered its biggest fall in over two decades on Tuesday.
The dollar slipped from a nearly four-month high after comments stoked uncertainty over whether the Fed would hike rates in September.
The slump in EM currencies could persist well past the Fed's first rate rise, due to Chinese economic weakness and commodity prices that have yet to bottom out, analysts have warned.
The dollar dropped from a near four-month high against a currency basket on Friday, as investors pared back bullish bets following jobs data.
The dollar edged lower against major currencies in choppy trading on Thursday, as investors balanced their positions ahead of Friday's data.
The dollar traded little changed on Wednesday as data showed the U.S. services sector expanded at its fastest pace in 10 years.
The dollar rose on Tuesday as a top Fed official voiced support for an interest rate increase in September despite a batch of disappointing data.
The dollar gained as investors looked ahead to jobs data on Friday that is expected to show a still strengthening labor market.
The dollar's appreciation has "peaked" and the U.S. economy is "doing nothing," an economist has told CNBC.
The dollar fell against a basket of currencies on Friday, ending a decent month on a sour note.
The dollar rose to its highest level this week on Thursday after the U.S. Federal Reserve took another step towards raising interest rates.
The euro whipsawed against the dollar on Wednesday after the Federal Reserves said it would leave interest rates unchanged.
Emerging market currencies were eyed by investors on Wednesday as weak oil prices, China's market pain and after the Federal Reserve left its interest rates unchanged.
The U.S. dollar rebounded against the euro and yen on Tuesday after traders took profits from gains in those currencies.
The U.S. dollar hovered around a nearly two-week low against a basket of major currencies on Monday.
Robert Rennie, global head of FX strategy at Westpac Bank, expects factors such as the persisting slide in commodity prices and questionable growth in China to accelerate the fall in commodity currencies.
The dollar rose against a basket of currencies on Friday in choppy trade.
Paul Mackel, head of Asia currency research at HSBC, says the preliminary gauge of China's manufacturing activity signals that commodity currencies may face further downward pressure.
The euro strengthened on Thursday, briefly rising above $1.10 for the first time in a week.
Elias Haddad, senior currency strategist at Commonwealth Bank, attributes the New Zealand dollar's relief rally to factors such as positioning adjustments and a tweak in the central bank's policy statement.