Heatwave. But you know this already.
Thanks to Marina for the photograph.
Tonight sees mostly clear skies, down to around 14’C.
Tuesday sees high pressure in charge – stretching all the way from the Azores to Scandinavia – a remarkably similar set-up to August 1976. And very similar weather.

Long spells of sunshine for most of the day, a little bit of high cloud in the morning, and some fair-weather and high cloud later in the day. Hot, 29’C, maybe 30’C. A bit of an easterly breeze though. Clear skies overnight, down to around 15’C.
Wednesday sees glorious sunshine all day. Hot, 30’C, maybe 31’C. Clear skies overnight, down to around 16’C.
Thursday sees glorious sunshine all day and those temperatures continue to tick up, 32’C seems feasible in an easterly breeze. Clear skies overnight and a fairly warm night, down to around 18’C.
Friday sees long spells of sunshine all day. A little bit of high cloud possible later in the day, but otherwise glorious – and a shade hotter, 33’C looks very achievable – despite the notable easterly breeze. Not often we get a hot easterly breeze. Clear skies overnight and a warm night, no lower than 19’C.
Saturday sees long spells of sunshine again. A little bit of cloud possible in the afternoon, likely very hot and probably still breezy, reaching around 34’C, maybe 35’C or so – though I wouldn’t be surprised with anything between 31’C and 36’C. A very, very small chance of a shower later in the day. A bit of cloud overnight and likely no lower than 19’C.
Sunday is more uncertain. It looks like low pressure is going to develop over France and head north.

What it means on the ground is uncertain – it will depend on the timing of any features that develop within the low pressure, and how it develops. Broadly speaking likely still hot, somewhere between 26’C and 36’C, with the latter half of that range more likely. Probably at least some sunshine – perhaps still sunny all day, though more likely at least somewhat hazy. And then add on an unknown chance of some thundery showers breaking out.
Next week likely starts hot, possibly humid, but also with some heavy showers or thunderstorms around.
By midweek it should be much fresher – possibly rather autumnal by the end of the week and into the weekend, with showers, rain and wind likely at times – with some sunny spells too. Not especially high confidence on that yet though.
Is that the end of summer? Probably not.
I think things more likely changeable for late August and into early September, but generally very warm or quite hot – short hot/very hot spells possible. But also some short cooler spells, with some showers should be mixed in.
Enjoy the glorious sunshine whilst you can…or be excited about the prospect of rain…whatever makes you happy. I intend on enjoying both!