Brits are set to bask in the sunshine next week as temperatures could reach highs of 25C in the south east.
People flocked to parks and beaches on Saturday to make the most of the warm and sunny weather as the mercury reached 25.2C at Heathrow in the early afternoon.
The Met Office has forecast "lots of sunshine" for Sunday afternoon and warm spells that will continue into next week.
"On Monday temperatures will once again reach around 25C in the south east and even somewhere like Aberdeen could get to 20C," Met Office meteorologist Marco Petagna told the Standard.
He added that temperatures will remain above average in the north of England, with temperatures reaching the "high teens".
Mr Petagna said: "There's a very small chance this afternoon of a shower affecting the south coast of England and we will see some low cloud coming in across the mid to north sea coast of England and eastern Scotland."
Increasing amounts of low cloud and some mist and fog is due to form overnight and into the early hours of Monday morning.
"A bit of a cool night, especially across some spots in the north where it could get down to mid-single figures in some places," said Mr Petagna.
"For Monday, mist and low cloud fog will lift for lots of sunny weather again. But some wet and windy weather will sweep across the north west of Scotland later in the day."
The mercury will remain in the mid-20s in the south east on Tuesday, but wet and windy weather is due to move in across northern areas, said the Met Office
Mr Petagna added: "All parts of the UK are more unsettled from Wednesday onwards.
"We could see a 10C drop in the south east between Tuesday and Thursday."
It comes as police forces encouraged Brits to continue to follow social distancing guidelines despite the warm weather this weekend.
A social gathering of more than six people indoors or outdoors in England is against the law, and could lead to fines of up to £3,200.
Assistant chief constable Claire Nix, of Kent Police, said there would be an increased presence in “key areas” around the county, as Covid-19 remains a “real and deadly threat”.
The Metropolitan Police urged Londoners to “continue to act responsibly” amid forecasts of warm weather for the capital over the weekend.
The force said it will continue to patrol public spaces and respond to incidents where groups of more than six are gathering, reminding the public of fines for breaching coronavirus guidelines.
Forces in Dorset, where large crowds have previously flocked to the beaches to enjoy the heat, also warned that anyone flouting the new “rule of six” over the weekend may be subject to fines.