The pound rose to a six-day high on Friday after a Bank of England meeting revived expectations of a rate hike this year, but sterling's gains were checked by fears of a breakdown in Brexit talks next week.
Sterling has struggled through much of June, weighed down by worries about a slowdown in the economy and fraught attempts by British diplomats to secure a deal to exit the European Union in March.
The currency rallied on Thursday, though, when the Bank of England's chief economist unexpectedly voted for an interest rate hike.
The central bank kept interest rates on hold but the decision by Andy Haldane to join two other policymakers in calling for rates to rise to 0.75 percent lifted the pound off a seven-month low as expectations grew that the BoE could tighten policy in August.
The upbeat outlook for interest rates and a weaker dollar on Friday helped sterling climb half a percent to a six-day high of $1.3312, though the currency is still down 7.5 percent from a post-Brexit high hit in April.
Markets now see a 50 percent likelihood of the BoE raising interest rates in August by 25 basis points and a 90 percent chance of a rate hike happening by the end of 2018.
"The BoE may prefer to act sooner rather than later given Brexit uncertainties may intensify later this year and make a November rate hike difficult," said analysts at MUFG.
Nine months before Britain's exit from the EU, the country seems to be trapped in a period of low growth. In the first quarter of 2018 GDP rose by just 0.1 percent, the slowest rate since 2012.
Prime Minister Theresa May is struggling to find a proposal on post-Brexit customs arrangements - the biggest stumbling block so far in exit talks - to take into negotiations with Brussels.
"For now I would focus more on the EU summit than the Bank of England's August meeting. I expect the summit to be harsh on Britain and for GBP to fall next week as a result," said ACLS analyst Marshall Gittler.
The pound on Friday traded flat against the euro at 87.68 pence.
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