Sterling has traded in a narrow range of $1.28-$1.30 since Britain last month pushed its scheduled departure from the European Union back from March until Oct. 31.
In early London trading, sterling fell 0.1 percent against the euro to 90.73 pence its lowest since Sept. 12, 2017.
The BoE looks set to pass a post-financial crisis milestone by finally raising interest rates above emergency levels set more than nine years ago. [nL5N1US52B]
Sterling edged 0.3 percent lower at $1.3028 and nearing an early September 2017 low of $1.3010 hit in the previous session.
The dollar drifted sideways on Friday after a week of losses, as markets waited for U.S. jobs data to shake the currency out of recent ranges.
Foreign currency exchange rates stabilized against the Egyptian pound in Saturday banking transactions.