BRITS can expect another scorching day with the mercury rising to 23C, making it hotter than Barcelona.
Sadly though the balmy conditions won’t last as rain is expected tonight.
That was mixed by some rain in western parts of Northern Ireland and Scotland.
Most parts of England and Wales though will see a warm day with hazy sunshine, according to the Met Office.
The forecaster said: “Scotland and Northern Ireland cloudy and windier with rain at times, this reaching northwestern parts of both England and Wales later.
“Otherwise England and Wales mostly fine with sometimes hazy sunshine, leading to a warm day especially in the south east.”
Temperatures are expected to hit a high of 23C in the south east making it warmer than the Catalan capital where the temperature is expected to get no higher than 22C.
Overnight though a variable amount of rain and cloud is expected, according to the Meteogroup.
Southern areas will stay mostly dry but still considerably cloudy, whilst northern areas, extending down to southern Wales and the Midlands, will be wet.
A cloudy night for all with a few clear spells along with fresh to moderate southerly winds.
The warm and sunny conditions are expected to continue on Tuesday, particularly in the south east although there might be the odd shower to contend with, the Met Office said.
Further north there will be sunny spells with showers, which could turn heavy at times.
While many Brits will be making the most of the hot spell, there are fever sufferers have been warned to take care.
The combination of heat, little rain and a lack of wind will trigger masses of pollen, which will cause attacks among the UK’s estimated ten million hay fever sufferers.
The Met Office said: “Tree pollen occurs first, typically until mid-May, and affects around 25 per cent of people.
“Most people are allergic to grass pollen, which actually has two peaks, and the season lasts until July.
“Weed pollen can be released at any time but the season typically covers the end of June to September.”
Bookies are now making this May as odds-on to be a record-breaking month.
Coral is now offering odds of 4/5 that this will be a record hot May.
The firm is also odds-on at 1-2 for this summer to be the hottest ever in the UK, while it is just evens for the highest UK temperature of 38.7C being broken in 2022.
“It is going to feel like summer has come early in the UK over the next few days. As a result of soaring temperatures, we have slashed the odds on this month ending as a record hot May,” said Coral’s John Hill.
“Looking further ahead, we now make it odds-on to be a record hot summer and we are not ruling out the UK having its highest ever temperature this year,” added Hill.