Canada's central bank will keep interest rates steady on Wednesday, and likely through the next several months, as it waits to see if its expectations of a stronger second half come to fruition, economists say.

But they are split on the Bank of Canada's next move, with half of the 10 economists at primary government securities dealers surveyed by The Wall Street Journal expecting no change in the benchmark rate until the end of June 2016. Two expect the bank to raise rates once by that time, two see it cutting once in that period, and one sees it cutting twice.

The split reflects differing views on two big issues the country's central bank is grappling with: exactly how much domestic damage the drop in oil prices will inflict, given that crude is Canada's largest export; and the strength of the U.S. economy, which will play a decisive role in determining if Canada can boost its nonenergy exports as the bank expects.

The central bank cut its rate by a quarter percentage point to 0.75% on Jan. 21, a surprise move meant as "insurance" against the potential impact of the sharp drop in oil prices. It kept the rate steady at its next two policy decisions and gave limited direction on the future direction of rates.

The bank has said there was no growth in gross domestic product in the first three months of the year, with Bank of Canada Gov. Stephen Poloz at one point describing the data from that period as atrocious.

More recently, Mr. Poloz has struck an optimistic tone, predicting the economy would rebound strongly in the second half, after absorbing most of the negative impact of lower oil prices in the first half—supported by a robust U.S. economy.

Most economists expect the Bank of Canada to maintain that tone in the policy statement Wednesday.

"We don't think he'll say anything exciting. We think they will stick to the party line, which is that the second half will be a better place to be," said Benjamin Tal, senior economist at CIBC World Markets.

The bank's policy statement might recognize recent uncertainties about the U.S. economy, but remain generally optimistic for the U.S. for the balance of the year, said David Watt, chief economist at HSBC Canada. The U.S. takes about three-quarters of Canadian exports, making the health of its economy key for Canada's outlook.

The broad range of views about monetary policy in the coming months reflects uncertainty about the oil-price impact as well as differing opinions about Canada's ability to ramp up its nonenergy exports, a crucial development if the burden of growth is to move away from heavily indebted consumers to exports and business investments.

Mr. Watt is skeptical about the strength in the U.S. economy, observing that in only three years since 2000 has the U.S.'s economic performance for the year as a whole outperformed the forecasts at the end of the year. He said he expects the bank will ultimately cut rates twice more, bringing its key rate to 0.25% at the end of the first half of 2016.

The bank's ultimate policy goal is to bring inflation to 2% over the medium term. Many economists don't expect inflation to be a problem in the coming months.

"We don't see a lot of inflationary pressure over the next couple of years," said Randall Bartlett, senior economist at TD Bank.

Write to Don Curren at don.curren@wsj.com

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