Bank holiday temperatures will bring "unseasonably cool" conditions to the UK, marking the an end of an extreme month of weather which has included a heatwave and two named storms.
The chilly and cloudy spell is also in stark contrast to last year's late August Bank Holiday Monday – which was the hottest on record, when the mercury hit 33.2C (91.8F) at Heathrow.
And it comes just weeks after people flocked to the nation's beaches as temperatures reached 36.4C (97.5F) on what was the hottest August day for 17 years.
London and Cardiff are expected to reach around 18C (64F) on Monday afternoon, while Edinburgh could see temperatures struggle to hit 15C (59F). Belfast's may reach 17C (63F).
Alex Burkill, of the Met Office, said he is not expecting any records to be set with today's low temperatures.
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"Monday daytime temperatures will struggle again, probably only just about getting into double figures in some places, but I'd be surprised if we broke any records," he said.
"It has been quite extreme at times, we've had some very hot weather and then the two storms (Francis and Ellen) towards the end of the month.
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"Even this bank holiday has been unseasonably cool. (The weather) has brought everything this month and that's not really going to be captured in the monthly averages.
"They're not going to show the extremes that we've had."