Heavy rain fell on Wednesday night and into the early hours of Thursday as Storm Aurore moved in from France.
Transport delays are possible for some areas after heavy rain and strong winds overnight.
The Met Office has said the downpours will converge in north-east England and south-east Scotland on Tuesday.
The east and south of England and the north east of Scotland could see flooding, travel disruption and power outages over the weekend.
Flooding, transport disruption, and power outages are possible in parts of north east Scotland and the south and east of England.
The Met Office has said Lincolnshire and north of London could see a jump in temperatures.
The Met Office has issued a yellow warning for heavy showers and thunder across parts of England, Wales and Northern Ireland.
A report by the UN's Intergovernmental Panel on Climate Change is the first to quantify the likelihood of extreme events across a wide variety of scenarios.
Sunday is looking pretty wet, with almost all parts of the UK due to some heavy showers.
A drier, hotter August could be in sight, forecasters said.
Thunderstorms continue to batter large parts of the UK causing heavy rain and risks of flash flooding.
Some areas could see up to 100mm of rain, the Met Office has warned.
Six flood alerts have been issued in England as a result of the storm.
The Met Office said the newly named storm will bring ‘unseasonably strong winds and heavy rain’.
Deluges are expected across the UK and 15 flood alerts have been issued by the Scottish Environment Protection Agency.
The video was filmed in Guazhou County in Gansu Province on July 25.
Whipps Cross Hospital in east London cancelled all surgery and outpatient appointments on Monday due to the heavy rain.
German Chancellor Angela Merkel was due to visit Schuld, a village near Ahrweiler that was devastated by the flooding, on Sunday.
Health authorities have warned people to practise caution in the hot weather, staying hydrated, applying sunscreen and not leaving children or pets in cars.
Officials fear that more bodies might be found in cars and trucks that were swept away.