The benchmark 10-year yield was last down 1 basis point at 1.4888%.
"Truly, to getting a read on where the economy is heading and where inflation is heading, we don't think we're going to have those data points until the fall," he said.
The Fed is not expected to announce any plans to pare its bond purchases until its August Jackson Hole economic symposium, though it may start dropping hints that it has started to talk about a taper.
"This rally in rates seems very counterintuitive. I still haven't found a very strong case besides perhaps the offset of positioning, people are getting out of trades ahead of the FOMC," Rajappa said.
The benchmark 10-year yield, which dropped to 1.469%, the lowest since March 4, was last down 1.6 basis points at 1.5452%, holding below a 14-month high of 1.776% reached on March 30.
The 30-year yield tumbled to its lowest level since March 1 at 2.158%. It was last up less than a basis point at 2.2449%.
The Treasury said electronic payments sent by direct deposit in the latest round of disbursements will have an official pay date of Wednesday, March 24, with some recipients seeing them in their bank accounts earlier as pending deposits.
"The selloff may have run its course," said Jabaz Mathai, head of US rates strategy at Citi, pointing to inflation breakevens backing down.
"I would not say the bear market in Treasuries is over at this point, but there is the prospect of a near-term pullback," said Mathai. "You should see some stability in the 10-year around these levels."
The benchmark 10-year US Treasury note's yield was down 5.2 basis points at 1.4633%. On Thursday it touched 1.614%, the highest in a year, rocking world markets.
Part of Friday's decline could also reflect dealers convincing clients to buy bonds after poor demand for a 7-year note auction on Thursday.
The 10-year yield was up 6.9 basis points at 1.4578% and reached as high as 1.468%, the highest in a year.
"It's starting to become a momentum trade and the sell-off is becoming a global phenomenon," said Subadra Rajappa, head of US rates strategy at Societe Generale.
The benchmark 10-year yield was up 4.1 basis points at 1.4046% in morning trading, its first time above 1.4% since a year ago, and reached as high as 1.435%
Patrick Leary, chief market strategist and senior trader at Incapital, said the trading could also be a sign of investor skepticism about Powell's reassurance.
Yields dropped on Wednesday after data showed that the core consumer price index, which excludes the volatile food and energy components.
Lederer added that he does expect yields to rise later this year as COVID-19 vaccines are rolled out and the economy returns to more normal conditions.
The $1.9 trillion stimulus package looks likely to be approved by Congress, bypassing Republican roadblocks.
Ten-year borrowing costs extended their rise to the highest since last March at 1.2%, while 30-year yields touched 2% for the first time since mid-February 2020 .
The benchmark 10-year yield was up 1.4 basis points at 1.1532% in morning trading after it reached as high as 1.188%, its highest since March 20, 2020.
US employment growth rebounded less than expected in January and job losses the prior month were deeper than initially thought.
Yields on other long-dated Treasury maturities were also lower, with those on 30-year and 20-year bonds falling to two-week troughs.
Tom di Galoma, managing director at Seaport Global in New York, said the rally in Treasuries extended after Merck pulled out of its COVID vaccine plan.
Overnight, the Nasdaq led modest losses on Wall Street, falling 1.3% as investors sold tech giants who have taken actions against Trump and his supporters.
Primary dealers, who are responsible for absorbing the supply not sold to direct and indirect bidders at auction.
The drop in longer-dated yields pulled the yield curve flatter with the spread between the two- and 10-year yields last down about 2 basis points to 76.6 basis points.