Britons are set to swelter in an “unusual” heatwave over the next few days, with temperatures reaching up to 40C in parts of the country from 17th to 19th July. The mercury could even top the 38.7C record set in 2019. Night-time temperatures will also be high, with the potential for the record for the warmest night, currently held at 23.9C, to be broken over the same period. — With the Met Office issuing their first ever red warning for extreme heat on (15/07/2022), some of the computer models are now showing that temperatures are expected to peak at 43c!! …