Just then the scorching temperatures after the mild 34°C heatwave end

Mercury could hit 34C in some areas of the country on Friday for the fourth time since the 1960s before temperatures cool towards the weekend

Brits basking in the sun can continue to enjoy Friday’s heatwave before temperatures drop over the weekend.

Conditions in part of the south are expected to hit 34C tomorrow as mercury levels continue to rise.

The hot spell will continue on Saturday, but temperatures will drop to the mid-20s in some areas of the south and around London, while others may experience thunderstorms.

Conditions are expected to settle into the mid-teens by Sunday, according to the Met Office.

If thermometers hit 34C on Friday, it will be the fourth time since the 1960s, which before this year has only happened in 1976, 2017 and 2019.

The hottest temperature in June was recorded on June 28, 1976, when the mercury reached 35.6 °C in Southampton’s Mayflower Park.

A spokesman added: “It is very unusual that we have temperatures of 34C in June.

“That has only happened three times from the 1960s to this year.

“Tomorrow will be the last day of the heatwave for most of the country.

“We can see temperatures of 34C or 35C, which is exceptionally high for June.

“After that Saturday will be a bit cooler with temperatures in the mid to high 20s in the south and London.

“Sunday there will be some showers with average temperatures in the high teens before normal weather for the season returns next week when there may even be thunder with temperatures in the mid teens or low 20s.

The Met Office’s deputy chief meteorologist Jason Kelly said: “The heat is the result of a mix of indigenous warming due to high pressure over the southern half of the UK, as well as a south-westerly airflow bringing warm air, which has been around all week on the continent, across the country.

“This is the first hot spell this year and it is unusual for temperatures to exceed these levels in June.

Some areas can experience warm nights with overnight lows in the high teens or even low 20C, particularly in urban areas like London.”

Next week, conditions are expected to return to usual June levels.

Earlier this week aa Level 3 Heat Health Alert was issued for much of the South East and East of England, with a Level 2 alert for the South West and East Midlands and a Level 1 alert for the West Midlands and North of England.

Agostinho Sousa, Head of Extreme Events and Health Protection at the UK Health Security Agency, added: “Temperatures are expected to hit 30C in some parts of the South on Friday and we want everyone to be able to enjoy the hot weather safely, when it arrives and be aware of good health advice for dealing with warmer conditions.

“In hot weather, it’s particularly important to keep an eye on those most at risk, such as the elderly and those with heart or lung problems. Watch for signs of heat exhaustion and follow our simple health tips to beat the heat.”