Analysts also predict that Norges Bank will signal more increases in 2006 to control strong growth in the oil-backed economy.
Norges Bank last raised the rate to 2.0 percent, matching levels in the euro zone, from a record low 1.75 percent on June 30, and 10 analysts in a Reuters poll last week were unanimous in predicting a further increase on Nov. 2.
"There's no real doubt that there will be a rate rise" on Wednesday, said Harald Magnus Andreassen, chief economist at First Securities in Oslo.
The central bank's executive board said at its last routine meeting on Sept. 21 that it had considered a rise - taken by markets as a strong indication that it would raise rates at the next chance on Nov. 2.
Analysts said they would watch for any shift in the outlook from recent meetings, when the bank has spoken of rate rises in "small, not too frequent steps".
