Temperatures are set to exceed 25C next week - and bring with it the hottest day of the year so far - forecasters say.
Brits will sizzle in 26C heat as high pressure continues to move across the country from the Atlantic.
The mercury peaked 24.2C on Friday - and 23.9C today - both times at Porthmadog, Gwynedd, but forecasters say it'll get warmer as soon as Sunday.
It'll be hot enough to be officially classified as a heatwave by Met Office - in some spots only, as the temperature threshold to be seen as one varies by UK county. It must be a prolonged period of heat too.
If the mercury does hit 26C, those living in Scotland, Wales, Northern Ireland, Northern England and most of the Midlands and most of the Southwest of England will bask in a heatwave.
Rachel Ayers, Met Office meteorologist, stressed the warmest parts of the UK - most likely to see 26C - will be parts of Wales and the west of England.
"We'd be looking at that somewhere in the west, probably similar kind of areas, parts of Wales, maybe south-west England," she said.
A breeze across the south, particularly English Channel coasts, will affect temperatures in those areas.
Temperatures in eastern areas, and London and the Home Counties are more likely linger around the 21C mark, Ms Ayers added.
Pollen levels, though, will remain high throughout the weekend and into next week.
For Londoners to experience an official heatwave, the mercury must reach 28C.
The hottest temperature recorded in 2023 so far was on Tuesday in Porthmadog - a glorious 25.1C.
Met Office website has urged people to take precautions as temperatures rise over the summer period.
These include drinking plenty of non-alcoholic fluids and reapplying an appropriate factor sun cream at regular intervals throughout the day.
They also urge people to eat as you normally would, as not eating properly may exacerbate health-related problems.
