There's now strong agreement across the models for the UK to experience a run of 'peripheral continental' conditions (yes - I just made that term up).
Some notable continental heat for so early in the summer looks to deliver a glancing blow Friday/Saturday, with the chance of some mid-20's temperatures across the SE in particular on Saturday, after low 20's quite widely on Friday. Locally, temperatures could climb a bit higher than that in the far SE.
Being at the boundary and with a strong trough to the west, the UK is at risk of some considerable, perhaps severe rainfall events. On this, there is little run-to-run or cross-model consistency or agreement to be found - for the next few days it looks best to just keep an eye on that without taking any individual prediction too seriously.
The hot continental air may remain close to the UK for a good part of next week, depending on how the weak ridges of high pressure to the east behave in combination with possible 'heat lows' i.e. slack areas of low pressure developing within the hot continental airmass.
Currently, a rough combination of model solutions suggests that low 20's are favoured across England in particular, while the NW may feel the effects of the Atlantic trough complex hanging about rather close to us, resulting in relatively cool and fresh conditions.
The evening runs have brought a strong suggestion that the Atlantic trough complex will retrogress even further west towards the end of next week, perhaps encouraging the more pronounced ridge from the SW that the models originally toyed with for the middle part of next week.
As I've seen many times before over the past 6 years, the models appear to have initially shifted the pattern too quickly, correcting towards a slower shift, involving more steps, as the time has drawn nearer.
Originally Posted by: Stormchaser