The Canadian dollar weakened against the greenback on Wednesday as the Bank of Canada cut interest rates to support the economy ahead of expected U.S. trade tariffs, helping to widen the gap between Canadian and U.

The potential for U.S. tariffs is clouding the economic outlook for the Bank of Canada as it delivered another interest rate cut, reducing its policy rate by a quarter-percentage point to three per cent.

The Canadian dollar weakened against the greenback on Wednesday as the Bank of Canada's latest interest rate cut helped widen the gap between Canadian and U.S. bond yields, but the decline was limited ahead of a Federal Reserve policy decision.