BBC Weather’s Sarah Keith-Lucas said sunshine will break through the clouds of torrential rain from earlier in the week while the south of Europe will see boiling temperatures. She said: “Still some heavy downpours across parts of Europe over the coming few days. It is looking drier across parts of Switzerland and northern Italy where we had torrential rain from earlier on in the week.
“That’s now cleared away, higher pressure in charge for much or Italy, France, Spain and Portugal too.
“Very unsettled weather crossing the UK and Ireland into Scandinavia.
“Moving through Thursday night and into Friday we’ll continue to see some stormy conditions.
“Some heavy rain moving into northern parts of the UK, some heavy showers in southern France and the alpine region.
READ MORE: UK weather warning: Chart shows deluge of heavy rain to lash nation
“The other main story is the heat for the south and southeast of Europe.
“Not quite as hot for Portugal and Spain but tempeatures here on the rise, lots of dry, sunny weather to be seen.”
Another deluge is expected across parts of the UK, with as much as 80mm of rain set to fall in some areas.
The Met Office has issued yellow weather warnings for much of Wales and northern England, and an amber weather warning for Scotland.
Stephen Dixon, a spokesperson from the Met Office, said there was an amber weather warning in place from 6am on Wednesday to 6am on Thursday in Inverness.
He said: “The rain can cause potential flooding and travel disruption.
“There is the potential for 80-100mm over 24 hours, but more likely 60mm more widely across that amber area.
“There can possibly be lightning and hail in areas of Scotland.”