A yellow warning is in place for “potentially intense” thunderstorms in large parts of the country – and some places could have up to 40mm of rainfall in less than two hours.
The Met Office said there could also be “frequent lightning, large hail and strong winds”.
The alert lasts until 3am on Sunday and covers parts of northern England, northeast Wales and the Scottish Borders.
The Met Office urged those in the warning areas to consider if their location is at risk of flash flooding and to prepare accordingly.
Image: Weather warning for thunderstorms. Pic: Met Office
Forecasters have said the heatwave in parts of England and Wales provides “perfect conditions” for thunderstorms.
On Saturday, the UK had the hottest day of 2025 so far, with a temperature of 33.2C (91.7F) recorded in Charlwood, Surrey.
And thousands of people watched the sunrise over Stonehenge in Wiltshire to celebrate the summer solstice, marking the year’s longest day.
Met Office meteorologist Jonathan Vautrey said “hot and humid air is being dragged up” from parts of continental Europe.
“But we also have low pressure out in the Atlantic, and that is driving weather fronts across the UK, providing instability in the air and the perfect conditions to start sparking off some thunderstorms as that hot and humid air rises rapidly,” he added.
Image: People enjoy the warm weather on a beach in Margate, Kent. Pic: PA
The east of England, including London and the South East, could experience a “tropical night”, although most of the country will see “a lot cooler” and “a lot fresher” conditions, Met Office forecaster Dan Stroud said.
“In one or two spots, that could potentially be a tropical night, which is where the overnight minimums actually fail to drop below 20 degrees (centigrade),” he added.
Sunday will see a day of “sunny spells and showers” with highs of around 27C and 28C, Mr Stroud said.
An amber heat-health alert for all regions in England remains in place over the weekend.
The alert, issued by the UK Health Security Agency (UKHSA), has warned that significant impacts are likely during the alert period across health and social care services, including a rise in demand.
Sir Keir Starmer has urged anyone with information on the Jeffrey Epstein case to come forward after Andrew Mountbatten Windsor missed the deadline to appear in front of US Congress.
US legislators have criticised Andrew for what they describe as “silence” amid their probe into Epstein after he failed to respond to their request for an interview.
When asked about Andrew missing the deadline and whether the former princeshould help the case in any way he can, Sir Keir said on his way to the G20 summit in South Africa: “I don’t comment on this particular case.”
He added that “a general principle I’ve held for a very long time is that anybody who has got relevant information in relation to these kind of cases should give that evidence to those that need it”.
Andrew is not legally obliged to talk to Congress and has always vigorously denied any wrongdoing.
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Image: Sir Keir Starmer spoke to reporters on his way to the G20 in South Africa. Pic: Reuters
It comes as Marjorie Taylor Greene, a loyal supporter-turned-critic of US President Donald Trump, said on Friday she is resigning from Congress in January.
Ms Greene’s resignation followed a public falling-out with Mr Trump in recent months, as the congresswoman criticised him for his stance on files related to Epstein, as well as on foreign policy and healthcare.
Members of the House Oversight Committee had requested a “transcribed interview” with Andrew in connection with his “long-standing friendship” with Epstein, the paedophile financier who took his own life in a New York prison in 2019 while awaiting trial on sex trafficking and conspiracy charges.
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Releasing the Epstein files: How we got here
But after saying they had not heard back, Democrats Robert Garcia and Suhas Subramanyam accused Andrew of hiding.
Their statement read: “Andrew Mountbatten Windsor’s silence in the face of the Oversight Democrat’s demand for testimony speaks volumes.
“The documents we’ve reviewed, along with public records and Virginia Roberts Giuffre’s testimony, raise serious questions he must answer, yet he continues to hide.
“Our work will move forward with or without him, and we will hold anyone who was involved in these crimes accountable, no matter their wealth, status, or political party. We will get justice for the survivors.”
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The new Epstein files: The key takeaways
It follows Andrew being stripped of his prince and Duke of York titles earlier this month.
He had previously agreed to stop using his titles, but had expected to remain a prince and retain his dukedom, ahead of the publication of the memoirs of the late Ms Giuffre, who had accused him of sexually assaulting her when she was a teenager – an accusation he denies.
A 13-year-old girl has been arrested on suspicion of murdering a woman in Swindon.
Police said the teenager was detained following an incident in Baydon Close, Moredon, in the Wiltshire town on Friday evening.
Officers responded to reports of disorder inside a house. When they arrived, a woman in her 50s living at the address was found to be not breathing. She was declared dead at the scene.
There were no other reported injuries.
Image: Forensic officers are at the scene to collect evidence
Detective Inspector Darren Ambrose, from Wiltshire Police’s major crime investigation team, said: “This is a serious incident in which a woman has sadly died.
“We have set up a cordon at the address while an investigation is carried out.
“I can confirm that we have arrested a teenage girl in connection with this incident and we are not looking for anyone else.”
Police have asked people not to speculate about the incident online as this could prejudice the case.
A police statement read: “Residents can expect to see an increased police presence in the area while we continue carrying out our enquiries into the woman’s death.
Rail fares are to be frozen for the first time in 30 years, the government has announced.
Ministers promised that millions of rail travellers will save hundreds of pounds on regulated fares, including season tickets and peak and off-peak returns between major cities.
The fare freeze applies to England and services run by English train operators.
People commuting to work three days a week using flexi-season tickets will save £315 a year travelling from Milton Keynes to London, £173 travelling from Woking to London and £57 from Bradford to Leeds, the government said.
The changes are part of Labour’s plans to rebuild a publicly owned Great British Railways. Other planned changes include tap in-tap out and digital ticketing, as well as investing in superfast Wi-Fi.
Image: The freeze applies to regulated fares, including season tickets and peak and off-peak returns. Pic: iStock
Chancellor Rachel Reeves said the government was introducing a freeze on rail fares for the first time in 30 years, which “will ease the pressure on household finances and make travelling to work, school or to visit friends and family that bit easier”.
“We all want to see cheaper rail travel, so we’re freezing fares to help millions of passengers save money,” Transport Secretary Heidi Alexander said.
“Commuters on more expensive routes will save more than £300 per year, meaning they keep more of their hard-earned cash.”
Rail unions and passenger groups welcomed the move, praising how it will make travel more affordable for passengers and promote more sustainable travel alternatives.
Eddie Dempsey, general secretary of the Rail, Maritime and Transport union, said: “More affordable fares will encourage greater use of public transport, supporting jobs, giving a shot in the arm to local economies and helping to improve the environment.”
TUC general secretary Paul Nowak said the rail fare freeze “will be a huge relief to working people”.
“This is the right decision, at the right time, to help passengers be able to afford to make that journey they need to take, and to help grow our railway in this country, because the railway is Britain’s green alternative – taking cars and lorries off our congested roads and moving people and goods safely around our country in an environmentally-friendly way,” Mick Whelan, general secretary of the train drivers union Aslef, said.
The Tories welcomed the move but said the government was “late to the platform”.
Shadow transport secretary Richard Holden said: “In government, the Conservatives kept fares on the right track with below-inflation rises and consistently called for no further hikes to protect hard-working commuters.”