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You might remember that last summer something called a heat dome caused sweltering temperatures in Canada and the US.

Well, now Europe is experiencing one of its own. It’s sitting mostly over southern Europe - as our graphic shows.

A heat dome is a large mass of hot air that gets trapped by high pressure.

“It’s sat there, wobbling, sending wafts of hot air our way,” the Met Office told BBC News.

For now it appears “firmly anchored”, meaning that we could see more hot air could come our way for a considerable time.

The UK does have its own potential right now for high temperatures - dry soil, strong sun, and above-average sea surface temperatures.

But the Met Office says that the heat dome is driving most of the conditions.