WASHINGTON — With inflation in the United States still excessive, most Federal Reserve officials expect to raise interest rates further this year, Chair Jerome Powell told a House committee Wednesday.

“Inflation pressures continue to run high, and the process of getting inflation back down to 2% has a long way to go,” Powell said on the first of two days of testimony on Capitol Hill.

Even so, the Fed last week kept interest rates unchanged after 10 consecutive hikes so it could take time to gauge how higher borrowing rates have affected the economy, Powell said. The contrast between the Fed’s stated concern over still-high inflation and its decision to skip a rate hike has heightened uncertainty about its next moves.