Parts of the UK could be hotter than Hawaii on Friday, but forecasters have warned of possible heavy rain and thunder, with more changeable weather to come over the bank holiday weekend.Temperatures could reach 27C in London and East Anglia at the end of the working week, the Met Office said.It would make Friday the warmest day of the year so far and hotter than Honolulu, the capital of Hawaii, where highs of 26C are forecast.

Parts of the UK could be hotter than Hawaii on Friday, but forecasters have warned of possible heavy rain and thunder, with more changeable weather to come over the bank holiday weekend.Temperatures could reach 27C in London and East Anglia at the end of the working week, the Met Office said.It would make Friday the warmest day of the year so far and hotter than Honolulu, the capital of Hawaii, where highs of 26C are forecast.