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. 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