UK economic growth is expected to have risen in the third quarter, but analysts warned of a drop in output towards the end of the summer.
Economists believe that gross domestic product (GDP) growth climbed to 0.6% between July and September, according to consensus estimates.
It comes after growth rebounded to 0.4% in the second quarter as sunny weather encouraged higher retail sales and construction.
The weather is thought to have continued warming up the economy for the third quarter, but the end of the period is seen rising more slowly as the summer boost wears off.
“Friday’s GDP report likely will fuel concerns the economy has little underlying momentum,” said Samuel Tombs, chief UK economist at Pantheon Macroeconomics.
“Granted, quarter-on-quarter growth probably sped up to 0.6% in Q3 -exceeding the economy’s potential rate – from 0.4% in Q2.
“But this simply reflects a surge in activity in weather-sensitive sectors at the start of the quarter, following weakness earlier in the year.”
Month-on-month growth in September is expected to be 0.1%, reflecting a drop in several key sectors which benefited from the heatwave.
Economists expect monthly construction output to have fallen, based on the most recent industry data.