An 800-mile-wide “subtropical sizzle” will bring 31C UK highs this week.
After a 26C weekend, sunny highs are expected to continue climbing to 31C on Wednesday.
This puts Britain hotter than 26C Terrasini in Sicily, Italy.
READ MORE: Glastonbury fears as UK festival-goers wade through mud ‘up to the knees’ in soggy coats
But 17million Brits face hay fever hell as the pollen count hits its highest level of the year.
Severe asthma sufferers have been urged to stay inside in case pollen triggers an attack.
Netweather’s Nick Finnis said 31C is forecast by midweek, adding: “Hotter weather will extend over England and Wales.”
(Image: Anadolu Agency via Getty Images)
Met Office forecaster Marco Petagna said: “It looks like proper summer temperatures.”
But lightning and downpours are due from Thursday, especially in the south-west where 200,000 will arrive for Glastonbury Festival.
A Met Office forecaster said: “A largely settled start to the week will see plenty of dry and fine weather, rather hot at times.
“We may then see a breakdown with heavy showers or thunderstorms.”
(Image: Getty Images)
Despite the joys of warm weather coming our way, the UK Health and Security Agency (UKHSA) has issued a warning to Brits.
A yellow heat health warning has been issued for most of the England.
The severe heat warning has been put out for most English regions from Monday, June 24, coming into force across eight areas from early morning.
(Image: Getty Images)
The only English region spared from the warnings is the North East, where temperatures are not predicted to soar as high as other areas.
Yellow warnings are the second-lowest on a scale devised by the UKHSA, above green “summer preparedness” alerts, and one step below the second-highest “enhanced response” amber alert.
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