Brits are set for another scorching day on Wednesday, with the possibility of temperatures hitting 37C amid the threat of thunderstorms and torrential rain.
It comes after sun seekers flocked to beaches and parks again on Tuesday as the mercury peaked at 35C in Heathrow.
Following another balmy night in which temperatures in London and the South East are expected to stay above 20C, the mercury set to soar once again.
Meanwhile a yellow weather warning for thunderstorms remains in place for most of the UK until Thursday evening. Storms have been developing over northern Scotland on Tuesday evening.
It's going to be another 🌡️ hot and humid night across parts of the southeast. Here are the forecast overnight minimum temperatures 👇 pic.twitter.com/qdYN9VfeEH— Met Office (@metoffice)August 11, 2020
Met Office meteorologist John Griffiths told the Standard: "[On Wednesday] there will be a mixture of sunshine and heavy rain, some showers will be torrential and there will be a chance of thunderstorms, and that will be the case for most of the country, most likely over Wales, across the midlands and into the North East and North West."
Up to 40mm of rain could fall within an hour in parts of England, and up to 80mm in three hours.
Mr Griffiths added: "Temperatures in London are expected to reach 36C and could even hit 37C. Much of central England will be very hot as well.
"It will be another warm, dry night on Wednesday night although there is still the potential for storms, especially in Wales and the South West."
Severe storms are expected again on Thursday, when the whole of southern Britain could be affected.
Mr Griffiths said: "On Thursday there will be more severe thunderstorms with frequent lightning and hail, which could hit anywhere in southern Britain.
"Temperatures will be cooler but it will still be very hot in London and the South East, around 30 or 31C, elsewhere it will not be as hot, in the North West mid-20s and in North East high teens.
"On Friday it will generally be more cloudy, still humid, with possible showery outbreaks and some thunder could be around.
"The best of the sunshine will be in central and northern Scotland and far southern England, with maximum temperatures of 27C in the South East."