Sunday set to be hottest day of year so far
Sunday is set to be the hottest day so far this year and temperatures may hit 30C, the BBC weather centre predicts.
The previous high for 2010 was on 24 May, when it reached 28.8C at Heathrow Airport.
The prediction comes as millions are set to watch England play Germany in the World Cup and Glastonbury festival-goers bask in the sun.
"The heat just continues to build and build and Sunday could be its peak," BBC forecaster Dan Corbett said.
The hot weather has been caused by an area of low pressure to the north-west of the UK which is allowing warm air to travel in from southern Europe.
Sunstroke