Weak weather fronts moving from west to east mean there will be a fresher feel to the air from the middle of the week onwards but temperatures in the south east of England will still be reaching somewhere up in the mid twenties.
Today is forecast to be the hottest Bank Holiday Monday since records began, with temperatures expected to reach 29C.
The hot day in England comes as people round off their three-day weekend - making it the hottest Bank Holiday Monday in 40 years.
It could be so good it breaks records.
The brief spell of summer weather is due to hot air coming in from 86F (30C) southern Russian Federation, leading meteorologists to dub the heatwave the "Roast from Russia".
However temperatures are expected to be gone just as fast as they arrived, dropping back to their seasonal norms tomorrow, with wet and windy conditions expected on Tuesday and again on Wednesday evening. You would then start to see cloud and you could start to see patchy rain.
While it was hot in the North-East, it was positively sizzling elsewhere in the UK - Monday's high temperatures were predicted to soar to a sweltering 29C (84.2F) in parts of the South-East.
"It will be cooler around the south east in the mid to high twenties".
But forecasters warned the heatwave is not set to last, with the weather for the rest of the month described as "changeable".
Royal bride Meghan may be hoping the rain will stay away for her big day at Windsor Castle.
He said temperatures will generally be above normal, but this will depend on whether it is a sunny day or a sunny wetter day.
"Neither does it look like it's going to be a complete washout, frightful end to the month of May".
"If we see things really warm up it's likely to mean millions more cars on the road, which is bound to cause queues on popular routes".
Mr Powell added: "Fingers crossed it all kind of ties in with one of the drier days".