Thunderstorms are on the way for the capital as weather warnings are put in place for London following a heatwave.
Temperatures are expected to stay hot at around 26 degrees, but a torrent of rain is predicted to fall by 6pm, a mere two days after the hottest September day in nearly 70 years .
The Met Office have issued weather warnings for London and said: "Slow developing thunderstorms may develop later today (September 15), leading to locally torrential downpours with the risk of of hail and frequent lightning."
They warned: "Please be aware that whilst many places will miss them, there is the risk of flash flooding where they do occur."
Chief forecaster of the Met added: "Isolated thunderstorms may break out later this afternoon and through the evening.
"Some locations could see 30-40mm an hour, bringing the possibility of flash flooding, particularly in urban areas and lightning could cause disruption to power supplies."