BRITS will sizzle in a 35C heatwave next week - and forecasts say the mercury could tip a whopping 40C later this month.
The UK will be treated to fine, dry and scorching weather with plenty of sunshine.
Forecasts show by mid-July record breaking temperatures are on the cards.
The highest ever temperature in the UK was recorded on 25 July 2019, when the mercury hit 38.7C.
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But according to latest latest modeling, large parts of the southeast could also hit 39C this month.
And this week highs of 35C are on the cards - and an extreme heat warning has been issued by the Met Office.
Forecasters have put a Level 3 Heath Health Alert in place from Monday until Friday.
The “Heatwave action” grade is triggered when temperatures for one of more regions have been reached for one day and the following night, and the forecast for the next day has a greater than 90% confidence level that the day threshold temperature will be met.
This means social and healthcare services up and down the country may have to act to target specific actions at high-risk groups.
With temperatures due to hit a sweltering 35C, the Met Office are also asking Brits to watch out for these people.
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They said: "Look out for others, especially older people, young children and babies and those with underlying health conditions.
"Close curtains on rooms that face the sun to keep indoor spaces cooler and remember it may be cooler outdoors than indoors.
"Drink plenty of fluids and avoid excess alcohol, dress appropriately for the weather and slow down when it is hot."
The weather bureau are advising Brits to reduce the risk by reading up on the Heatwave Plan for England.
Brits will be back outside this weekend with beaches expected to be swarming with visitors.
Met Office forecasters predict temperatures could go as high as 35C by next week, making it hotter than Antigua, in the Caribbean, which will only top 29C.
Met Office forecaster Marco Petagna said: “Forecast models suggest mid-30s temperature highs later next week.
“All eyes are focused on a southerly airstream which could waft additional heat to our shores.”
Today is expected to see a high of 29C with the mercury nudging 30C by Sunday.
A recent heat map shows the band of boiling hot temperatures just sitting south of the UK and is forecast to move north by Friday.
Only in the far north-west it will remain cloudier and cooler with rain at times.
But the hot days ahead has prompted some advice from dog trainer Joe Nutkins.
He's concerned pet owners might forget to consider how their pets will fare in the weather after reaching found many don't know the optimum temperature a car should be when travelling with a dog.
Temperatures are due to climb even higher early next week and reach the “mid-30s” as the week progresses.
The run of scorching temperatures is expected to last long enough for the Met Office to officially declare it a heatwave.
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The forecaster said in an update: “Areas with lower heatwave thresholds, especially southwest England and south Wales are more likely to reach heatwave criteria from Thursday onwards.
“Elsewhere with the higher thresholds, the chance of an official heatwave is more marginal, although it’s possible they could also reach their heatwave thresholds from Sunday.”