The UK has been hotter than normal in all five months from January to May this year.
And with a high of 35C predicted, it looks like 2017 will put 2014 in the shade as the hottest year since records began in 1910.
Unusually dry southerly winds have boosted Britain’s temperatures this year.
The Met Office predicts hottest abnormal conditions during June and July. And above-average temperatures are forecast from August until the start of November.
The high of 35C is predicted by The Weather Outlook website.
Forecaster Brian Gaze said: “A ‘blowtorch’ pattern with several shots of hot air from southern Europe is expected.”
The outlook will cheer fans and families ahead of Glastonbury later this month, Wimbledon in July and the start of school holidays.
If temperatures peak at 35C it will be short of Britain’s hottest day on record July 1, 2015 when the thermometers hit 36.7C at Heathrow.
But it won’t be sunshine all the way with some wet days also expected.
Bob Ward, of the Grantham Research Institute on Climate Change and the Environment , said: “Given the very warm temperatures so far and the forecast ahead, 2017 is on course for the warmest year on record.
“The risk of heatwaves this summer has increased, with above average temperatures every month suggesting warmer temperatures are part of a trend.”
Met Office forecaster Emma Sharples said: “All months this year have been warmer than average for the UK as a whole. June could well see days in the high 20s, with spells of warmer days mixed in with changeable conditions.”
