WARSAW—Poland’s November inflation projection may be crucial for the country’s central bank in deciding whether interest rates rise again this year, Eryk Lon, one of the most dovish members of the Monetary Policy Council (MPC), said. In an unexpected move, the bank raised its benchmark interest rate in October by 40 basis points to 0.5 percent, acting sooner than analysts had expected to try to curb an inflation spike. “Whether there will be another interest rate hike this year will depend on the November projection. I believe that the October interest rate hike will gradually bring down inflation,” Lon wrote in response to Reuters’ questions. Polish inflation rose to 5.9 percent in September, well above the central bank’s target range of 2.5 percent plus or minus one percentage point. “I do not rule out that the November projection will indicate that the period of inflation remaining above the upper limit …