UK weather forecast: Scorching 90F Azores heatwave set to blast Britain as maps turn dark red

Brian Gaze from The Weather Outlook said the “the highest values” will be in “central and south eastern England”.

The expert explained that the “area of high pressure” is “coming up from the south west”.

“It’s possible that we’ll reach 30 or 31C on Saturday and Sunday. Possibly 32C," he told the Express.

He added that “southern European” sun is set to head for Britain, but it may not be around for very long.

The forecaster warned that “there is a bit of uncertainty” regarding how long the mini-heatwave will last.

Temperatures could be “cooler after Sunday” so Britons are urged to make the most of the sunshine.

Ahead of the weekend, rain is expected to sweep the UK with some parts set to see scattered showers, though many places will remain dry.

Highs of 28C are predicted to hit areas across London and the south east including Norfolk.

Cornwall and Devon are likely to struggle to make it out of the teens along with Wales and Scotland.

The rest of Britain is set to see glorious sunshine before cooling down to low 20s next week.

A Met Office spokesperson said: "Sunny spells and scattered showers. Some potential thunder but feeling warm and muggy."

Before the weekend forecast predicts conditions will be: "Very warm and hot for many, especially in the south east of England which will see much sunshine.

"The weather will slowly turn unsettled from the north west with showers spreading across the UK."