Thursday
High pressure to the south will maintain a southwesterly flow, with embedded weather fronts affecting northern and western areas. Low cloud with rain or drizzle will affect western coasts and hills in Scotland, Northwest England, Wales and parts of Ireland, with a risk that some heavier bursts may run through at times, especially in the north. Early rain or drizzle in the Northeast of Scotland will die out during the morning. Dry across Northeast England, the Midlands and Southwest England and while skies are liable to be cloudy at times, some sunny intervals will develop. The south and southeast will be dry too and with a good deal of sunshine. South or southwest winds mainly light to moderate but fresher around western coasts. Highs 17 to 22C in the cloudier north and west up to a very warm or hot and humid 25 to 29C in the southeast.

Thursday Night
Cloudy skies with spells of rain or drizzle and hill fog will continue to affect northern and western areas. The Midlands, Eastern and Southern England will be dry with variable cloud cover, skies across Southeast England largely clear. Lows 11 to 15C in the north, a humid 17 to 20C in the south.
 

Friday
A Ridge of high pressure will build from the south but weakening fronts will continue to bring cloud and patchy rain or drizzle to Northern England, North Wales, Scotland and Ireland. Dry elsewhere with some sunshine breaking through and mainly sunny skies for the south and southeast of England. Temperatures peak at 18 to 22C in the north and west but a hot and humid 28 to 31C in the Midlands and southeast.

Saturday
With high pressure established, fronts in the north will continue to weaken. Northwest England and Western Scotland will be cloudy at first with, perhaps a little drizzle but it will become dry generally with sunny intervals developing. Eastern parts of England and Scotland will have sunny intervals but, whilst mostly dry it is possible that one or two showers may develop. Southern England and much of Wales will be dry with some sunshine, the best of this across England. Fresher in the north with highs of 13 to 18C but up to a hot 29 in Southeast England.