Hot air from south will be prepared for interaction between high pressure flowing in the south of the UK with the remains of the tropical storm dexter in the Atlantic.
The sun will be the best in England and Wales, although there is a possibility of some scattered thunderstorms. Northern Ireland and Scotland may expect rain outbreaks several times, especially on Monday.
After a hot weekend, the temperature actually starts climbing on Monday.
In most parts of England and Wales, the temperature will rise from mid -high -way, with some places in domestic counties and some places more than 30C.
This will be the first day of summer where the official heatwave criteria is met in many areas.
To define an official heatwave, there should be three consecutive days with temperatures above 25 to 28C, where you are in the UK, depending on it.
With very hot and humid wind by Wednesday, it will make it the fourth heatwave of summer, especially for Midlands, East and South-Eastern regions of East Wales, England.
