Summer has finally arrived as Met Office predict July heatwave We are less confident in predicting who will be in the final, or who will be the winner, though. As we go through into next week, it looks highly likely that one or two places will nudge towards the 30C (86F) mark. With this in mind, it's likely that by the middle of next week we'll have topped the current warmest temperature of the year, which was 27.2C (81F) recorded at Heathrow on Sunday. Forecasters are able to predict the heatwave because unusually a band of high pressure is set to usher in warm winds from the continent. It will take over from the cloud and occasional rain expected to last till Thursday. The weather comes after nine months of low temperatures, cold winds and rain after one of the coldest springs on record. In June, the Met Office was forced to hold an emergency summit to discuss the unusual weather in the last few years. This year saw the coldest spring in more than 50 years, with droughts and floods in 2012 and the freezing winter of 2010.