Temperatures are set to soar this weekend with the hottest day of the year predicated for parts of the UK.According to the Met Office, the south-east of England could see the mercury rise to 29C on Saturday.The joint warmest days of 2019 so far were April 19 and May 15, recording highs of 25.8C.However, a mixed weekend is forecast due to the high pressure dominating much of Saturday being replaced by low pressure on Sunday.A Met Office spokesman said: “The heat on Saturday is going to be limited to the south and east really, some parts of England and Wales, but with the main emphasis on the south-east corner and East Anglia.”There will be some medium and high-level cloud around. It will make the sunshine a bit hazy at times so not necessarily wall-to-wall blue skies, it’ll be feeling quite humid as well.”A similar figure again on Sunday in the south-east. Although the heat will be much more limited, we could still reach those sorts of temperatures.” Want the best of The Telegraph direct to your email and WhatsApp? Sign up to our free twice-daily  Front Page newsletter and new  audio briefings. “We’ve got that rain pushing in from the west on Sunday, so Scotland will see some quite persistent rain on Sunday.”Northern Ireland will see some rain and other western parts of England and Wales too.”The average temperature for June is 17C (62.6F).The bookmaker, Coral, has cut the odds on this summer being the hottest on record from 2-2 to 4-6 following a flurry of bets. “All the early forecasts point to a glorious summer this year and that has prompted punters to rush in to back it being a record-breaker,” said Coral’s John Hill.”After a scorching start to the month, the odds have also been slashed on this being the hottest June ever.” Northern England will be significantly cooler than the south on Saturday, with the average at around 18C.”The dividing line really is northern England for Saturday,” the spokesman continued.”Scotland, Northern Ireland and perhaps parts of northern England will not be necessarily particularly wet, but certainly a good deal cooler. Temperatures could soar in the south of EnglandCredit:David Rose Temperatures could soar in the south of England read more