Sizzling summer sunshine on Sunday could see temperatures soar to a record-breaking bank holiday high.
Sunseekers are set for continued sunshine and hot weather through the long weekend, with the mercury expected to hit 29C in eastern Scotland and 32C in the south-east of England.
The late summer sunshine, as a result of warm air being dragged up over the UK from France – comes at the end of what has been a wet and chilly month so far.
Temperatures are expected to rise even further by Monday, possibly reaching a late August bank holiday record high of 33C – most likely in the south-east of England, the Met Office said.
On Saturday, Gogerddan, near Aberystwyth, recorded 27.4C – a new record for the highest late August holiday weekend temperature in Wales.
The mercury rose to 30.7C at Heathrow, west London, just shy of the record of 31.5C set in the same location in 2001.
Aberdeenshire in Scotland could see 29C on Sunday, while Northern Ireland is likely to enjoy 24C.
People attending Notting Hill Carnival on Sunday and Monday – expected to number one million – have been advised to stay hydrated amid temperatures which are forecast to surpass 30C on both days.
Anyone travelling over the weekend has been advised by the RAC to pack enough food and water, and plan enough breaks for the journey.
Saturday’s high in Wales beat the previous record of 27.3C (81.1F) at Velindre, Powys, in 2013.
The Northern Ireland record stands at 27C (80.6F) recorded in Knockaraven, Co Fermanagh, in 2003.
Monday is not a bank holiday in Scotland.