Thomson Reuters
GDP is expected to grow by 0.3% in the quarter, with the year-on-year movement expected at 2.1%, according to the forecasts of economists polled in the run up to the release.
The data is being closely watched as Q3 was the first full quarter of activity after Britain's historic vote to leave the European Union. Initial predictions of economic doom after the Brexit vote have so far failed to materialise - with the exception of the crashing pound - and economic data has broadly held up well.
However, with a full quarter of data to look at, the picture could be more troubling, affirming the predictions of many economists and international organisations who forecast a huge crash in the economy post-vote. On the other hand, if the data is stronger than expected, it could be a major boost for Leavers.
More to come ...